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The Best Grow Lights For A 2×4 Grow Tent – Pictures, Specs, And More

What are the finest grow light options for a 2×4 grow tent and how do you choose them? Take a look at one of the following alternatives: A 150-watt high-pressure sodium (HPS) grow light, a Spider Farmer SF-2000, a Green Sunshine ES300, or the HLG 320-watt DIY quantum board LED grow light are all good options. When selecting a grow light for a 2×4 foot grow tent, the light intensity and consistent coverage area of the lamps are the most significant elements to consider, according to the manufacturer.

All of the alternatives I’ve listed below fulfill or surpass those standards.

Despite the fact that there are a plethora of perplexing lighting options available, either of these grow lights will function well in your 2×4 grow tent.

Many folks who are contemplating 2×4 foot grow tents are also considering 3×3 foot grow tents, according to my observations.

Budget Choice:Hydroplanet 150 watt HPS grow light

In terms of grow light options for a 2×4 grow tent, what are the most effective? Several possibilities are available to you, including: A 150-watt high-pressure sodium (HPS) grow lamp, a Spider Farmer SF-2000, a Green Sunshine ES300, or the HLG 320-watt DIY quantum board LED grow light are all viable options. The light intensity and consistent coverage area of the lights are the most significant aspects to consider when selecting a grow light for a 2×4 foot grow tent. It is possible that your plants will not reach their full potential if you use the incorrect grow light.

spoiler: The Mars Hydro SP-3000 and the Mars Hydro TSL-2000 are the two grow tents I’ve used in my own 2x4gorilla grow tent (shown above).

Don’t forget to check out my post on how to choose the proper size fan for your grow tent once you’ve finished reading this!

It is recommended that you choose a 3×3 foot tent.

It is inexpensive. The light intensity is sufficient for two 4x4ft grow tents to be set up. Despite the fact that HPS grow lights have a bad reputation for being heat generators and electricity hogs, this little 150 watt type does not generate much heat and does not waste much electricity due to its modest size. Indeed, it consumes less energy than the LED lights that I’ll be describing later.

Using low-quality lighting is not my first option, and I strongly advise against doing so. In contrast, if you’re really short for cash, the 150 watts of power from this lamp will suffice. One thing I’d recommend to consumers of this Hydroplanet 150w HPS grow light is that they acquire a wing reflector separately rather than utilizing the hood type reflector that comes with the light. Using a wing-style reflector will allow you to distribute light more evenly across your 2×4 foot grow tent.

The rest of the time, this grow light is a plug-and-play device. It comes with a power chord that is 10 feet long and a 150-watt bulb. Simply suspend this light between 18 and 24 inches above your canopy and you’ll be ready to go. Seedlings should be hung 26-28 inches above the ground.

Click Here to See Prices and Reviews of the Hydroplanet 150w HPS Grow Light on Amazon

The Spider Farmer SF-2000 is a quantum board LED grow light that is both contemporary and efficient. This light has a coverage area of 2×4 feet and utilizes the same LEDs and driver as the HLG, although it’s priced a little less expensive than the latter. LM301B LEDs were used in this project, and the driver was provided by Mean Well, which is a high quality, industry standard driver. My 2×4 grow tent at home has one, and it looks and functions great. I highly recommend it. You can read the rest of my Spider Farmer review right here.

Take a look at the amount of light that the SF-2000 produces: The SF-2000 emits a spectrum that includes warm white (3000K), cool white (5000K), 660nm (red), and 760nm (blue) wavelengths (infrared).

See what people have produced under Spider Farmer grow lights in the following examples: These photos were taken from Instagram, and you can see the huge buds that the Spider Farmer proprietors have developed.

SF-2000 Key Specifications:

Will blossom in a 2x4ft area — a larger space is required for seedlings. It consumes 200 watts of electricity. An adjustable ballast is incorporated. LEDs and drivers of superior quality (Samsung and Mean Well)
Price-performance ratio is the best available

Does the SF-2000 get hot?

It does generate some heat, as do all grow lights, but the amount is tolerable. Maintain proper air circulation and temperature control in the room where your 2×4 grow tent is positioned.

What height do I hang the SF-2000?

It is safe to hang this light at a height of 18 inches throughout vegetative and blooming stages, and at a height of 28 inches for seedlings. If you don’t have enough room to raise the light, you may always dim it; however, you’ll have to unscrew the driver from the board in order to get to the dimming screw, which is located on the bottom of the driver, which will need some effort.

Video:

Unboxing and overview of the Spider Farmer SF-2000 Quantum Board LED Grow Light by Spider Farmer.

Click Here to View or Purchase the Spider Farmer SF-2000

Designed specifically for use in 2×4 foot grow tents, the Green Sunshine Electric Sky ES300 is a high-end LED grow light. This is a high-intensity grow light with a spectrum that has been specially tailored. You’ll have to pay a premium in exchange for this. But it’s well worth the effort. Because the Green Sunshine Company feels that most grow light spectrums lack sufficient infrared, the ES300 generates greater amounts of infrared and red than is often seen in grow lights. The following is a breakdown of the colors: Blue makes up approximately 10% of the spectrum; green makes up 25% of the spectrum; red makes up 55% of the spectrum; and infrared makes up 10% of the spectrum.

The University of Michigan conducted an experiment to see if the incorporation of green light is beneficial to plant development when compared to other typical spectrum makeups.
According to the Green Sunshine Company, “With the unique high-dose of near-infrared light, huge blooms commence earlier, vegetation develops quicker, and the plant makes more effective use of light from what is known as the Emerson Effect.
What you said piqued my interest immediately.
Finally, take a look at the light intensity when it is suspended 18 inches over the canopy of a 2×4 foot grow tent: That is an astounding quantity of light spread throughout the whole 2×4 foot footprint of the grow tent.

Your cannabis plants will undoubtedly flourish under the illumination provided by this grow light!

ES300 Key Specifications:

A 2×4 foot grow tent will produce flowers. Provides a broader area for seedlings to grow
It consumes 300 watts of electricity and has dimming capabilities. Extremely high performance in a 2×4 configuration
The heat sink frame effectively dissipates heat.

What Height to Hang The Green Sunshine ES300:

Because of the unique lenses on the ES 300, you can get the light extremely near to the plants without burning them. The Green Sunshine Company specifically indicates that the light may be suspended as low as 12 to 15 inches above your canopy during the flowering phase, despite the fact that the intensity values above are from the normal 18-inch height. That’s quite an accomplishment.

Video:

Unboxing, review, and PAR testing of the Electric Sky ES300 LED grow light

Growers’ Opinions:

Green Sunshine grow lights have had consistently positive feedback, and I haven’t come across a grow light that has received more consistently favorable feedback as the Green Sunshine grow lights in my study. Please feel free to peruse the reviews on your own. Other than generally good remarks, gardeners have noted shorter vegetative development stages and higher-quality plants as advantages of using the product.

Click Here to See Prices and Reviews for the Green Sunshine ES300 at LED Grow Lights Depot

Growing in a 2×4 foot grow tent with the HLG 260 watt QB (quantum board) is a popular option for growers that don’t mind spending a few minutes putting it together. This is the XL variant, which means that the main board is longer than usual, allowing for greater space between the LED boards, which results in improved light uniformity. It is an excellent choice for a 2×4 space since you are receiving HLG quality and performance at a reasonable price with the HLG 260 watt quantum board. Assembling the light yourself enables them to sell the board at a lower cost than they otherwise would.

HLG 260 Watt QB XL Key Specifications:

A 2×4 foot area is sufficient
No soldering is required. Only a screwdriver and a wire remover are required. At 2.7 umol/Joule, it is extremely energy efficient
It consumes 260 watts. Driver with dimming capability
Included is a hanging kit. Color temperature of 3500K with red wavelength of 660nm (see below)

Here’s a look at the intensity when the light was tested in open air:

Keep in mind that this is an open-air test, and that when you install the HLG 260 watt QB into your grow tent, the reflecting walls will enhance the light intensity much higher than it already is. The temperature in the spectrum is 3500K, which is usually considered to be the optimal temperature for growing cannabis at all stages of growth. Additionally, the lamp has 660nm red LEDs, which guarantee that there is enough red light to support a vigorous blooming cycle.

Video:

Although the video below is for the non-XL version, the assembly procedure is the same, so you should be able to get a sense of what to expect: DIY LED Grow Light Kit by Horticulture Lighting Group (260 watts): Construction and Evaluation

Click Here to See Prices and Reviews of the HLG 260 watt QB at LED Grow Lights Depot

After reading my lists, many growers contact me to seek for my advice. My personal preference for a 2×4 foot grow tent would be either the Spider Farmer SF-2000 or the Green Sunshine ES300, both of which are available on Amazon. Both of these lights are excellent choices, and I believe you will be pleased with any one. The HLG is also a very nice camera, but it faces stiff competition from the SF-2000, which is significantly less expensive. The Phlizon Linear Series PH-3000 received an honorable mention.

It’s a little more expensive, but it’s another good option for a 2×4 foot grow tent. I don’t advocate the 150w high-pressure sodium lamp, although I do talk to folks who are on a limited budget from time to time. If such is the case, you can choose one of those options.

FAQ:

A 2×4 foot grow tent may accommodate up to 40 watts per plant, while the best grow lights require at least 200 watts for the entire tent to function well.

How many cannabis plants fit in a 2×4 grow tent?

In a 2×4 grow tent, two to three cannabis plants can be accommodated. According to how huge the plants are permitted to grow, the price might fluctuate.

What size inline fan should I use in a 2×4 grow tent?

For a 2×4 grow tent, an inline fan with a capacity of 100 cfm to 120 cfm will be sufficient ventilation.

How do I control temperatures in a 2×4 grow tent?

Open a window or turn on an air conditioner if your grow tent is becoming too hot. You can also try cooling the room where the tent is situated. If the temperature inside the grow tent is too low, you may need to purchase a space heater for the room where the tent is placed.

How do I control humidity in a 2×4 grow tent?

The use of a humidifier or dehumidifier in your grow tent will allow you to regulate the humidity level. References:

What Size Led Grow Light For 4X2 Tent

While the minimal amount of electricity required to cultivate cannabis in a 2×4 foot grow tent is 40 watts per plant, even the finest grow lights require at least 200 watts for the entire tent.

How big of a LED grow light do I need?

The size and number of LED units you purchase will be dictated by the size and number of grow spaces you have available. For blooming medicinal or other large flowering plants, a decent rule of thumb for LED grow lights is 32 watts of real power per square foot of growing space, assuming the plants are flowering.

How many watts does a 2×4 use?

For a 4 x 2 foot floor space, you’ll need around 280 watts at 35 watts per square foot and 400 watts at 50 watts per square foot of power, respectively.

What size LED light for 3×3 grow tent?

In a 3×3 tent, you should aim for 350 watts of power. I would stay away from Amazon’s LED lights. They are either inexpensive and of poor quality, or expensive and of poor quality in some situations. If you’re searching for a light that’s ready to go, 700 is going to be difficult to come by.

How much can you yield in a 3×3?

A basic horizontal SCRoG can easily fetch you 10-12 ounces (provided all environmental parameters are dialed in, the strain is dialed in, and everything is dialed) and even a pound, all in a 33 tent (providing all environmental conditions and strain are dialed in). I’ve made the conversion from hoods to vertical growing and from horizontal to vertical growing.

How many pints fit in a 3×3 grow tent?

With a 3×3 grow tent for blooming, I would recommend putting at least two plants in 3 gallon pots at a time to maximize flowering. If you put a 600hps or a 320w cob or quantum in a 9 sq ft canopy, you may obtain 12-16oz from four plants, depending on the strain.

How many plants can a 1000w LED light grow?

So in this particular case, I would want an LED grow light that was at least 300 watts in power. What is the maximum number of plants I can grow? Size of the Growing Area The bare minimum in terms of watts You must be able to grow a minimum number of plants. 20 square feet (45 square meters) 1000w 1-20 plants (depending on the species)

How many watts 5×5 grow tent?

For a 5×5 tent, it is advisable to use lights that are around 1000 watts (High-Pressure Sodium).

How much power does a 2000 watt LED grow light use?

The entire amount of electricity consumed is around 300 watts.

The lamp has a covering area of 3 by 3 feet and produces approximately the same amount of light as a 400 watt high-pressure sodium bulb.

Can you have too much light in a grow tent?

Despite the fact that too much light can be detrimental to plant development, it is also a rather simple problem to resolve. Experts recommend 100 watts of light for a 2 foot by 2 foot grow area and up to 1,000 watts of light for an 8 foot by 8 foot grow area, depending on the size of the grow area.

Are grow tents worth it?

Is Investing in Grow Tents a Good Investment? Despite the fact that a grow tent might be a considerable initial expenditure, it can really save you money in the long term. This is due to the fact that using a grow tent will save you money on the expenditures of providing water, fertilizers, and light to your plants.

How many watts do I need for a 4×4 grow tent?

To light a 44 tent, a grow lamp with an actual wattage range of 500-600 watts should be used (assuming blooming plants that demand a lot of light and are collected in a single location).

How many watts 4×8 grow tent?

For a 48, I’d use anything from 1200 to 2000 watts, depending on what I had available and whether or not heat was an issue.

What size LED light for 4×8 grow tent?

That means, in order to adequately illuminate your 4 x 8 grow tent throughout the upcoming vegetative stage, you will need an LED grow light bulb with a minimum power of 800W, or you may combine multiple LED lights with a total power of 800W.

How many plants can fit in a 4×2 grow tent?

It is possible to grow one plant and acquire a yield that is equal to or more than the yield obtained by growing it in a scrog. A greater number of plants will help you to fill your 24 square foot space more quickly, to commence flowering more quickly, and eventually to harvest more quickly. I have 5 people in my 24 by 24 tent and it seems a little claustrophobic.

What is the best LED grow light for a 4X4 tent?

Our top pick: Abriselux A1500 LED Grow Light Dimmable with 4x4ft Coverage and Upgraded Larger Board, Full Spectrum SideKing Led Grow Lights SK-2500/250W Full Spectrum for Indoor Plants, 664Pcs High Efficiency Abriselux A1500 LED Grow Light Dimmable with 4x4ft Coverage and Upgraded Larger Board, Full Spectrum MARS HYDRO Grow Tent Kit Complete 2x4ft TSL 2000W LED Grow Light Dimmable Grow Tent Complete System,Mar 29, 2021 MARS HYDRO Grow Tent Kit Complete 2x4ft TSL 2000W LED Grow Light Dimmable Grow Tent Complete System

How much does a 1000w led grow light cost to run?

You must multiply your watts by 1,000 to get your wattage (1,000 kilowats in 1 watt). For example, if we were to use a 1000 watt grow light for eighteen hours a day at the kWh rate we mentioned previously, our formula would be: 1 x $0.1559 x eighteen hours x thirty days = $84.186/month.

How many plants can I fit in a 4×8 grow tent?

The approved standard is 8 plants in a 48 configuration.

How many plants can go under 600w LED?

The yield of 2 month plants should be around 40g per plant, which means that with roughly 9 plants, you’ll be able to cover a square meter with ease and receive up to 400g per 600w light. 3 month autoflowering plants, on the other hand, grow significantly larger, thus you should only plant four of them per 600w bulb.

How much does it cost to run a 600 watt LED grow light?

Electricity costs an average of 12.83 cents per kilowatt-hour ($0.1283/kWh) in the United States.

This is the cost per day of running the G8LED 600W Veg/Flower grow light for one year. Calculate the monthly operating cost by multiplying it by 30. Additionally, because of the decreased heat output, less energy is consumed by the HVAC system, resulting in even greater savings.

What size grow light do I need?

In order to begin, you must first establish how much space you will be illuminating. As a general guideline, you should aim for 20 to 40 watts per square foot. Substitute your bulb’s wattage for 1,000 and divide the result by 20 (for example, 1,000 divided by 20 = 50), then multiply the result by 40 (for example, 1,000 divided by 40 = 25). The result provides you with the extremes of the light intensity range that you have selected.

How big of a grow tent do I need for 4 plants?

A rectangular tent shape is the most effective for four plants, and the most typical size is a 44. This provides each plant with around 4 square feet of growth room (or a 22 of the total area). It is really a little less than that, because you want to leave some space between the plants to allow for air circulation.

How much area does a 1000 watt LED grow light cover?

When hanging 2 feet above the plants, a 1000 watt grow lamp can illuminate an area of around 7 feet square when suspended 2 feet above the plants. A 400-watt lamp would be sufficient for illuminating an area around 4 feet square.

How Big Of A Light For A 2X4 Grow Tent

While the minimal amount of electricity required to cultivate cannabis in a 2×4 foot grow tent is 40 watts per plant, even the finest grow lights require at least 200 watts for the entire tent.

What size LED light for 4×4 grow tent?

For the reason why LED lights are typically recommended for grow tents, we will only cover the finest LED grow lights available on the market for your tent. To light a 44 tent, a grow lamp with an actual wattage range of 500-600 watts should be used (assuming blooming plants that demand a lot of light and are collected in a single location).

What size pots for 2×4 grow tent?

You must answer certain questions for yourself and decide what you want to do to help this business succeed. My own proposal would be to place one or two trained plants in that location, in at least 7 gallon cloth pots, as a starting point.

What size light for 5×5 grow tent?

For a 5×5 tent, it is advisable to use lights that are around 1000 watts (High-Pressure Sodium). Although HPS lights appear to be yellow in hue, they actually contain color spectrums that are yellow and red. Plants that bloom well in both spectrums are encouraged to do so.

How much area does a 1000 watt grow light cover?

Can you have too much light in a grow tent?

How many plants can a 1000w LED light grow?

What is the maximum number of plants I can grow? Size of the Growing Area The bare minimum in terms of watts You must be able to grow a minimum number of plants. 3 x 9 ft (9 x 33 ft) 450 watts 1-9 plants* 12 sq ft (34 square meters) 600 watts 1-12 plants* 16 square feet (4 square meters) 800 watts 1-16 plants* 20 square feet (4 x 5) 1000 watts for 1-20 plants*

How many cars fit in a 5×5 tent?

In a 55 tent, there are nine automobiles.

What size pots for 3×3 grow tent?

With a 3×3 grow tent for blooming, I would recommend putting at least two plants in 3 gallon pots at a time to maximize flowering.

If you put a 600hps or a 320w cob or quantum in a 9 sq ft canopy, you may obtain 12-16oz from four plants, depending on the strain. It will be thick and well woven.

What size LED light for 2×2 grow tent?

3. California Light Works is a lighting design company based in California. SolarXtreme 250 LED Grow Light is a high-performance LED grow light. With a power consumption of 200 watts, the SolarXtreme 250 cannabis LED light is appropriate for places up to 9 square feet in size. As a result, a 2′ x 2′ tent or a 3′ x 3′ tent will work perfectly with this light.

How many watts do you need for 1 plant?

Recommended wattage assuming 1.0 sq ft/plant of plants Square Feet Wattage from Wall 1 30 to 40 watts Recommended wattage assuming 1.0 sq ft/plant of plants 2 2 60-80 watts per channel 4 4 Watts between 120 and 140 watts 6 6 Watts between 180 and 200 watts

What size grow tent do I need for 12 plants?

5′ x 9′ and 8′ x 8′ Grow Tents — These are great for a spare bedroom and produce enormous crops of vegetables (9-16 plants) 10′ x 10′ Grow Tent – This is another another great size for a spare bedroom or in your garage. a total of 12-18 plants Grow tents 8′ x 16′ and larger — These require a lot of area as well as a lot of power for the lights (16-32 plants)

How much can you yield in a 2×4 grow tent?

Member in good standing. This would be on a 2×4 grow chamber and would require 8- 3gal pots weighing around 2.5 oz per plant. great, what kind of strain did you use for that? 30th of July, 2014

What size LED light for 3×3 grow tent?

How many plants fit in a 2×3 grow tent?

When you get to the 3 by 3 size, things start to become interesting. You find yourself with a plethora of possibilities. You could put four plants in this size tent, but you’d have to keep them on the tiny side in order to make them work. You could use the SOG approach to cram even more plants into the space available.

Should seedlings get 24 hours of light?

In order for your seedlings to develop healthy and robust, it is true that they require enough of bright light, but they also require a time of darkness to survive. They should be left on for 12 to 16 hours a day, depending on the circumstances. Many individuals make the mistake of placing their seedlings under fluorescent illumination 24 hours a day for the whole time they are growing.

How many plants can go under 600w LED?

How many plants can fit in a 4×4 grow tent?

4-6 plants, depending on the technique of cultivation and the style of cultivation. Always keep in mind that you want to ensure that there is adequate ventilation around your plants.

What size light do I need for my grow tent?

According to conventional wisdom, you should aim for 32-50 watts per square foot of growing space.

If your grow place is a specialized veg tent, you’ll need something closer to 25 watts. Using this example, if you’re dealing with a 3′ by 3′ space, you’d potentially want an LED light with a power demand that ranges between 225 watts (vegetative) to 450 watts (hi-tech) (flowering).

What is the best light for a 3×3 grow tent?

BESTVA DC Series Full Spectrum LED Grow Light is the best overall choice. MARS HYDRO TS Led Grow Light is the best white LED grow light for a 3×3 grow tent.

How much can you yield in a 3×3?

How many plants can fit in a 4×2 grow tent?

How much does a 1000 watt LED yield?

The average output with a single 1000-watt light is around 2 pounds every harvest. Sometimes it’s lower, like 1.5 lbs, and sometimes it’s higher, like 2.25 lbs, for me.

How Much Wattage For A 2X4 Closet Grow Led Lighting

I’ll be growing in a 2×4 tent for the time being. My grower buddy suggested that I look into LED illumination instead of using a fluorescent fixture. My lighting needs are unclear, and I’m not sure what size or wattage to utilize. I was planning on going with a 400-watt high-pressure sodium lamp, but if I can find anything in LED that can at least compete with the hid, I’d prefer LED. In my reading, I haven’t come across anything that provides a comparative table for lead versus hid. Alternatively, a side by side grow. Everything I’ve seen has lights that are either far too large or that are comprised of two or three light fixtures. I like how much less electricity and heat the leds generate. However, the yields of the hids are something I enjoy as well. Would it be sufficient to simply match the wattage in order to get the desired outcomes

snoopdog6502The ProfessorGold Member

In a 2×4 tent, I’ll be cultivating my crop. Rather than using a hid, a grower buddy suggested that I consider using LED lights. My lighting needs are unclear, and I’m not sure what size or wattage to use. My preference would be a 400-watt high-pressure sodium lamp, but if I can find anything in LED that can at least compete with the hid, I’d prefer it over the hps. Reading has yielded no results in terms of a comparison chart for lead to hide, which I was hoping for. an in-between grow, or both together Almost everything I’ve seen has lights that are far too large, or they’re utilizing two or three light fixtures at the same time. How much less electricity and heat the leds generate is something I appreciate. However, the yields of the hids are something I appreciate as well. To get these outcomes, would I only need to equal the wattage?

TheAnswer121A Work In ProgressOld School

Date of joining: July 21, 2013 Messages:17,121Likes Received:21,661
How should I go about locating a reputable brand? I’d want to purchase a fixture that can accommodate both a high-pressure sodium and a medium-pressure sodium light. or at the very least the ability to swap between the two It would be preferable if it could also be contained within a “super cooled tube,” given that it will be entering a confined area. what are the greatest web-based businesses to order from

IcemudCannabis IS a medicine33;

Date of joining: May 5, 2014 Messages:825Likes Received:1,215 I have a tent that is somewhat larger than a 2×4 square. It is 2.5’x5’x7′ in size, and I am using around 540w of LED (real draw) with great results thus far. Please feel free to watch my video or read my diaries. Intelligent Gro is the brand of LEDs that I am now utilizing. When using kGSJBUU?list=UUr2YQTb8Xq-Q7dW5Vi1VX4Q, should I compare the wattage of the led to the wattage of the hid? For example, if I were to keep away from the 400w hps. and instead use LED, would I still need 400w? In a few of weeks, I’m going to go check out my buddy’s grow to see what he’s up to these days. He probably has around 2000 watts of power, though. He can support up to 6 people. I’m in desperate need of anything I can afford, hehe

Brada HaoleNanometers matter

Joined on June 10th, 2014. 516 messages were sent out and 499 likes were received. When finances permit, it is always preferable to replace watt for watt. It’s just more entertaining
Date of joining: November 20, 2015 No messages have been sent, and no likes have been received. I’ve been thinking about getting the similar size tent, and I’ve decided on two marshydro 300w (white) lights because the costs can’t be beaten. I bought one just a few days ago, and my plants are delighted with it. Perhaps I’ll purchase two more. Date of joining: November 12, 2016 1 Like was received for each of the 6 messages. Would it be preferable to have two than just one?

buckethead129Ultimate-Platinum Member

Date of joining: December 17, 2010 Messages:4,194 3,119 people have expressed interest in this post. That would be excessive and might result in a fire. In 2×2, one is already more than sufficient
Date of joining: November 12, 2016 Messages:6Likes Received:1 How many plants can you fit in a gallon of water of what size?

buckethead129Ultimate-Platinum Member

Date of joining: December 17, 2010 Messages:4,194 Likes received: 3,119
Date of joining: November 12, 2016 Messages:6Likes Received:1 If you could provide your average output under one p300 and three plants in that space per plant, it would be great
A 2×4 is sufficient for two plants. I’d get two 300 watt Marshydro (or bigger) lights on eBay at a fair price. The 300’s are rather inexpensive. With two lights, there are less shadows, and if one of them fails, you won’t be completely stranded.

What Size Grow Light Do I Need? (The Simplest Way To Figure It Out)

It might be difficult to figure out what size grow light you need for your plants. A variety of elements come into play, like the sort of lighting you prefer, the plant(s) you are growing, the size of your grow space, and so on and so forth. In this essay, I break down the problem and attempt to make it as straightforward as possible. Before you begin, you must determine the light requirements of your plant(s), the sort of lighting you intend to employ, and the size of your grow space. 1. Requirements in terms of lighting When it comes to the light need, all you really need to know is whether it has a high or a low requirement for light.

Herbs and lettuce, for example, are examples of plants with minimal light requirements since they do not blossom.
The Kind of Lighting To be on the safe side, use fluorescent lights if you just have one (or maybe two) plants and LED or CMH lights otherwise if you are unclear which sort of illumination you will require.
3.
Alternatively, you can measure the plant (s).
It is time to get started once you have obtained those three pieces of information.
In order to determine what size of light you require and how many lights you require, if you require more than one, follow the instructions.

How To Determine The Size (And Number) Of Grow Light(s) You Need

I’ll start with high pressure sodium and metal halide lighting, then go on to compact fluorescent, then LED, and lastly fluorescent.

What Size HPS And MH Lights Do I Need?

High pressure sodium and metal halide lighting are the most straightforward types of lighting to understand (along with CMH below). There are two approaches that you can take.

By Coverage Area

It is simple to determine which light(s) will best cover your grow space if you know the size of your grow space (for example, the size of your grow tent). According to the most commonly used MH and HPS bulbs, the following approximate maximum coverage areas may be achieved with these wattages:

150 watts: 2 x 2 feet (or 4 square feet)
250 watts: 2.5 x 2.5 feet (or 6.25 square feet)
400 watts: 3 x 3 feet (or 95 square feet)
600 watts: 4 x 4 feet (or 16 square feet)
1000 watts: 5 x 5 feet (or 25 square feet)
1500 watts: 5 x 5 feet (or 25 square feet)
2000 watts: 5 x 5 feet (or 25 square feet)

You should be able to determine which size light is appropriate for you and how many lights you require based on this information. If all else is equal, 600 watt lights are the most efficient (meaning they produce more light per watt of power consumed) and 1000 watt bulbs are the second most efficient, so you should always check to see if they would work in your space first. Consider the following scenario: you have an area that measures 10 by 20 feet, or 200 square feet. That is completely divisible by 4 (the 150 watt bulb) or 25 (the total number of watts) (the 1000 watt bulb).

The eight 1000 watt bulb option is far superior.
Although the area is not exactly divisible, 200 divided by 16 gets you 12.5, which means you would only need to utilize 12 or 13 fixtures to make them all fit in the space.
One thing to keep in mind is that this is based on the maximum coverage regions available for each bulb power.
If you want to provide your plants enough of light in order to increase yields, the following approach makes it crystal apparent and provides greater outcomes than the previous one.

By Wattage

You should be able to determine which size light is appropriate for you and how many lights you require based on your answers to these questions. Assuming all else is equal, 600 watt lights are the most efficient (meaning they produce more light per watt of power consumed) and 1000 watt bulbs are the second most efficient, so you should always check to see if those would work in your space first. Take, for example, an area that is 10 by 20 feet, or 200 square feet in size: Using the 150 watt bulb as an example, this is completely divisible by 4 or 25.

You may illuminate the space with 50 bulbs of 150 watts each (20/4=50) or with 8 bulbs of 1000 watts each (200/25=8), depending on how many lights are used.
As a last resort, you might even use 600-watt lights to illuminate the surrounding region.
The 1000 watt option would be preferable in this instance, since eight of these would properly cover the whole space in this instance.
So the number of bulbs you decide to be necessary using this technique is closer to the minimal light need for plants with high light requirements than the number of bulbs you calculate to be necessary without using this method.

If you want to provide your plants enough of light in order to increase yields, the following approach makes it plain and provides superior outcomes.

What Size CMH Grow Light Do I Need?

Because there are just two typical wattages available: 315 watts and 630 watts, ceramic metal halide is much simpler to figure out than incandescent (which is a fixture with two 315 watt bulbs in it). One way to think about them is to examine the 315w bulb, which is comparable to 600w of MH or HPS light, and the 630w twin bulb fixtures, which are equivalent to 1000 watts of MH or HPS light. This implies that a 315 watt light will cover up to 44% of the area, while a 630 watt fixture will cover up to 55% of the area.

Check out my reviews of the best-value ceramic metal halide lighting kits if you aren’t sure which type of light you want.

How Many Watts Per Square Foot For LED Grow Lights?

In order to decide what size LED light(s) they require, most people use the wattage per square foot method, however this is not the only one. In addition, it is not the most exact method, but it is an excellent balance between accuracy and simplicity. Simply put, selecting how strong an LED grow lamp to purchase and how many of them you require is the most difficult task of all when it comes to growing plants under artificial light. This is owing to the wide range of lights available, as well as the fact that most manufacturers flat out lie about the specifications of their products.

In this case, there are three options to examine.

Using The Coverage Area Provided By The Manufacturer

When purchasing lights, most manufacturers disclose the coverage area of their lights, which you may use to determine which light will be able to adequately cover your grow space. Isn’t it nice and straightforward? If only everything were that simple. Unfortunately, many manufacturers (mostly Chinese, but also a significant number of American companies) overstate the area that their lights will successfully cover. The coverage area for a low-light-requirement plant (and not one with a high requirement, such as marijuana) or the coverage area for vegging, which is always bigger than the coverage area for blooming, are examples of what they could tell you to do.

Unfortunately, I do not have a decent answer for this problem at the moment.

If you’re looking for information about lights that I haven’t examined, you’ll have to go online.

Using The Wattage

If you want to grow a plant that requires a lot of light, you should aim for 30 to 40 watts per square foot of canopy area. Once again, there is a major issue to contend with. The majority of LED manufacturers provide both an actual wattage and a theoretical wattage (what the light would consume if the chips were all driven at full power, which they never are). Important! It is preferable to use real wattage for this calculation. This need a little investigation in order to determine the real wattage of a light bulb.

Many Chinese manufacturers do not even employ theoretical watts in their products.
Roleadro’s 2000 watt light, for example, only consumes 230 watts in reality (Roleadro is one of the absolute worst offenders when it comes to blatantly making up numbers).
They frequently bury it in the bottom of the page, but it is virtually always visible at the top.
Consider the following illustration.
6000 watts total would be required to illuminate that area with LED grow lights if we were to go for the lowest possible wattage per square foot of 30 watts per square foot of light.
This lamp has an actual power of 615w, therefore if we used 10 of these, we would have a total of 6150 watts.
Consider the following scenario: you have a 3×3 grow tent.
At 30 watts per square foot, you’d need a total of 270 watts to cover the area.
As a result, to illuminate this space, you would want an LED grow lamp with an actual wattage of 270 to 360.
As a result, the efficiency of the light is not taken into consideration with this technique.
However, the actual output will vary widely from one manufacturer to the next, and wattage is regarded as a decent indication for the quantity of light a fixture would offer.

Phlizon lights are simply more energy efficient than traditional lights. As a result, we arrive at the most accurate method: relying on the original output.

Using The Output

While this approach is the most accurate, it is also the most difficult to utilize since many manufacturers do not publish a great deal (if any) of useful information on the output of their lighting fixtures. This is especially true when it comes to Chinese-made products. Even if they do offer output information, they frequently just take a reading dead center underneath the light, which is where the output is at its most powerful, rather than everywhere else. They do not provide readings for the remainder of the coverage area, which is frequently due to the fact that the light is quite feeble around the outside of the region.

I’m sure you’re curious in how output is assessed and what level of output is considered satisfactory.
It is measured in units of micromoles per square meter per second and informs you how much light is present in the wavelengths that plants employ for photosynthesis.
Plants should receive between 300 and 600 umol/m2/s during the vegetative stage and between 600 and 1000 umol/m2/s during the bloom stage in order to achieve optimal results.
You want to acquire at least 100 umol/m2/s, but preferably more.
A PPFD footprint will be provided by reputable manufacturers (also referred to as a PAR footprint or a PAR chart).
Most of the best lights will not have sky-high readings in the middle (and thus much smaller readings around the outside), but will instead have good readings all over the place (even if the manufacturer only provides the figure for the middle).

What Size Fluorescent Grow Light Do I Need?

Fluorescent lights are only useful for a couple of plants at a time. They become inefficient if they are used for any longer than that. This article explains how to calculate the number of fluorescent bulbs you will require. Instead of reading that, just know that you’ll need between 60 and 100 real watts per square foot of growing space to have a good yield.

Choose the Right LED Grow Light Based on Your Grow Tent Size ?

For the first time, you’re learning how to put up a grow tent. Making the conversion from high-intensity discharge to LED grow lights? In either case, it’s critical to select the appropriate LED grow light for your tent size. LED lights provide a significant benefit for both you and your plants when you choose to utilize them. In fact, LEDs are the only lights that are capable of supplying plants with the precise light spectrum they require during the whole growth cycle. These lights, in addition to providing the finest quality of illumination, consume the least amount of energy to operate properly.

The full benefits of LED grow lights, on the other hand, are not available if the fixture you pick is not appropriate for your grow tent. The following are the measures you must take in order to select the best LED lights for your tent.

Step 1: Establish Whether Your Grow Tent is for Veg, Flowering, or Full Cycle Growing

Do you have a vision for how you want your grow operation to be set up? Do you intend to move plants between a specialized veg tent and a blooming tent during the growing season? Alternatively, do you want to keep your crop in the same enclosure during its whole harvest cycle? This is an essential question for a few of reasons. First and foremost, the response informs you of the sort of LED light you require. If your plants will be growing in this tent for the rest of their life, you may wish to invest in a variable spectrumLED that lets you to modify the light spectrum between each phase of growth and development.

Second, plants in the vegetative phase require approximately half the amount of light intensity that they require during the blooming phase.

Step 2: Decide How Many Plants You Plan to Grow In Grow Tent

It is not only about the size of the tent that you should consider when selecting the appropriate lighting for your grow tent. It’s also about the size of the canopy and how well it occupies the available area. Plan on providing at least one square foot of space for each plant if you aren’t sure how many you will be cultivating. Allow adequate room for your crops to spread out and become wide and bushy. When the plant begins to blossom, you will be in a great position to harvest large quantities of fruit.

Every LED grow light should include easy-to-find specifications on its product page, just like any other electronic device.

Step 3: Estimate How Much Wattage You Need for Your Square Footage

We’ve included this step since it’s one of many considerations to examine, but it’s not a hard-and-fast rule, and it should be treated as such. We’ll start by sharing a common rule of thumb, and then we’ll explain why you should use caution while using it. According to conventional wisdom, you should aim for 32-50 watts per square foot of growing space. If your grow place is a specialized veg tent, you’ll need something closer to 25 watts. Using this example, if you’re dealing with an area of three by three feet, you’d potentially require an LED light with a power demand of somewhere in the range of 225 watts (vegetative) and 450 watts (hi-intensity) (flowering).

The difficulty is that watts don’t tell you anything about the quality or intensity of light produced by a fixture, only its quantity.

Top-tier LED lights are incredibly energy-efficient and can generate an equal spread of high-intensity light while using only a little amount of electricity.

This lamp, on the other hand, has a PPFD rating of 800 and covers a coverage area of 3′ x 3′. And if none of it makes sense to you, don’t be concerned about it. We’ll go over it in more detail in Step 4.

Step 4: Compare PPFD Levels of LED Grow Lights

You may obtain more in-depth information about PPFD measurements by visiting this page. In the meanwhile, we’ll try to make things as simple as possible. The photosynthetically active radiation (PAR) transmission factor (PPFD) informs you how much photosynthetically active radiation (PAR) really reaches the canopy from a certain hanging distance. Here, we’re talking about the amount of useable light that makes its way from the bulb to the foliage. Follow these steps to grow plants that are healthy and flavorful:

Seedings and clones require 200-400 PPFD
Vegetation requires 400-600 PPFD
Budding and blooming require 600-900 PPFD
And fruiting requires 900-1000 PPFD.

Budding and flowering: 600-900 PPFD; Seedings and clones: 200-400 PPFD; Vegetation and budding: 400-600 PPFD; Vegetation and budding: 400-600 PPFD;

The PPFD level required by your plants
It should have a broad enough covering area to guarantee that the entire canopy receives sufficient quality light.

Your plants’ required PPFD level; It should have a broad enough coverage area to ensure that the whole canopy receives adequate lighting.

5 Best LED Light For 4×2 Grow Tents (Review 2021)

(This page was last updated on January 7, 2021.) Are you a passionate gardener seeking for the finest led light for a 42 grow tent? If so, you’ve come to the right place. If you answered yes, we can promise you that you have arrived at the correct location since we have all of the greatest LED lights covered for your convenience! At times, it might be difficult to choose which LED light would serve your needs the best. This is why we have included a comprehensive list of some of the most popular LED lights in this post, while also providing you with an in-depth review of the most significant characteristics, as well as the pros and disadvantages of each light.

Typically, 32 watts are required for every square foot of surface area.

If you are growing in a normal 42 grow tent during the blooming stage, you will need around 256 watts of power (recommended power range is between 256 watts to 350 watts). A conventional 42 grow tent will take around 200 watts of power during the vegetative stage (recommended power ranges from 200 watts to 300 watts).

This page will provide you with all of the information you want on the power input, the size of the lights, their applicability, their distinctive characteristics, their durability, their efficiency, and so on. Consequently, continue reading to choose which LED light you should get next for your lovely indoor hydroponic garden.

Review of 5 Best LED light for 4×2 Grow Tent

IMPORTANT FEATURES

DETAILS IMPORTANT

The Spider Farmer Newest SF-2000 LED light is a one-of-a-kind LED light that boasts a variety of unique characteristics, including the ability to withstand water, the use of updated LED technology, and a frame constructed of strong aluminum. This ensures a long-lasting construction while also serving as a cost-effective lighting solution for your growing environment. More than that, it offers its consumers an effective service thanks to its improved light penetration powers, and it is also a reasonably priced option when compared to other LED lights available on the market today.

There are no fans built in, thus there is no noise. High power production at a cheap cost of ownership
Minimal maintenance costs. It is relatively less expensive than other LED lights available on the market. Because of the installation of thick aluminum board material, there is no heat production. It encourages plant development at all stages due to the availability of a broad spectrum of light
Increased light dispersion within the canopy of the crops, allowing for more efficient development. The product includes three years of on-site service for any repairs or maintenance that may be required.

WHAT DID NOT APPEAL TO ME Sometimes it might be difficult to find the dimmable settings on the LED lights that you want to use.

2. MARS HYDRO Grow Light for 2×4 ft

IMPORTANT FEATURES

The following dimensions: 39.2 x 9.96 x 3.54 inches
300 watts (+/- 5%) of power is required for operation. A built-in dimmer for adjusting the lighting
It is appropriate for plants at all phases of development. Three five-inch vegetative stages and two four-inch blooming stages are sufficient. 684 pieces of LED bulbs using the newest SMD LED technology have been fitted in this unit.

The MARS HYDRO TSL 24 led grow light may be used for plants at all stages of development, and it is equipped with the most up-to-date LED technology currently available on the market. It offers crops with high light intensity as well as a whole spectrum of light, which increases the efficiency of plant development while lowering the cost of production.

Furthermore, the dimmer placed allows the user to manage the quantity of light that is emitted from within the grow tent, allowing the user to moderate the production of their plants. WHAT I APPRECIATED

The product is covered by a three-year warranty. By producing very strong light and increased reflecting capacity, it helps the user save both energy and money. The dimmer makes it simple for the user to adjust the quantity of light that is provided throughout different stages of plant growth. The increased output of plants with improved crop quality as a result of the effective SMD LED technology, which results in a 30 percent increase in yield
A whole spectrum of light is available to plants at all phases of their growth, allowing them to flourish at their highest potential while also producing high-quality harvests. Due to the fanless design and the installation of quantum light boards, which have a high reflecting capacity and help plants to absorb more light, this is one of the finest LED lights for 2×4 grow tents currently available on the market.

WHAT DID NOT APPEAL TO ME

3. VIPARSPECTRA LED Grow Light

IMPORTANT FEATURES

380 watts plus three percent
180 LED lights
16.5×16.5×3 inches for a 4×2 grow tent
390 watts plus three percent
Can be used for plants at any stage of development
In addition to a strong structure, the iron housing is also fireproof
At 32 inches, it provides 44 inches of veg covering and 33 inches of flowering coverage
At 24 inches, it provides 33 inches of flowering coverage.

380 watts plus three percent; 180 LED lights; 16.5×16.5×3 inches for a 4×2 grow tent; 390 watts plus three percent; 390 watts plus three percent; 390 watts plus three percent. Used for all phases of plant growth; suitable for all types of plants Fireproof structure, as well as a cast-iron enclosure, are included. At 32 inches, it provides 44 inches of veg covering and 33 inches of flowering coverage; at 24 inches, it provides 33 inches of flowering coverage;

A three-year warranty as well as a 30-day money-back guarantee are included. Increases the size of the buds and increases the yield, allowing the user to conserve energy. It is more durable because of the fire-resistant property, and there are fewer risks of fire occurrences. It is equipped with a 12-band spectrum of light that is suitable for the growth of all stages of crops. is equipped with a 12-band spectrum of light that may be used to produce crops at all stages of development This product has a daisy chain function, which allows customers to connect numerous LED lights together while utilizing fewer power outlets. A lifespan of over 100,000 hours makes it one of the best-LED lights for 42 grow tents because to its excellent endurance
It is also one of the most affordable. A faster cooling system with enhanced aluminum heat sinks ensures there is no buildup of heat on the motherboard. Furthermore, a high-speed fanning mechanism that is both efficient and effective in dissipating heat is beneficial.

WHAT DID NOT APPEAL TO ME

4. VIPARSPECTRA LED Grow Light

IMPORTANT FEATURES

380 watts plus three percent
180 LED lights
16.5×16.5×3 inches for a 4×2 grow tent
390 watts plus three percent
Can be used for plants at any stage of development
In addition to a strong structure, the iron housing is also fireproof
At 32 inches, it provides 44 inches of veg covering and 33 inches of flowering coverage
At 24 inches, it provides 33 inches of flowering coverage.

VIPARSPECTRA 900W is a sturdy, fireproof construction that may be utilized for plant growth at every stage of development. It has energy-saving systems in place, and by supplying users with high-yield crops, it is able to save both energy and money. This device is extremely user-friendly due to its excellent cooling mechanisms and daisy chaining capabilities. WHAT I APPRECIATED

A three-year warranty as well as a 30-day money-back guarantee are included. Increases the size of the buds and increases the yield, allowing the user to conserve energy. The fact that it is fire-resistant makes it more robust and reduces the likelihood of fire dangers. It is equipped with a 12-band spectrum of light that is suitable for the growth of all stages of crops. is equipped with a 12-band spectrum of light that may be used to produce crops at all stages of development This product has a daisy chain function, which allows customers to connect numerous LED lights together while utilizing fewer power outlets. A lifespan of over 100,000 hours makes it one of the top yielding LED lights for a 42 grow tent because to its great durability, making it one of the highest yielding LED lights available. A faster cooling system with enhanced aluminum heat sinks ensures there is no buildup of heat on the motherboard. Aside from being economical and high-speed, fanning systems are also great in dissipating heat.

WHAT DID NOT APPEAL TO ME

5.Niello 1200W Cree Grow Light

IMPORTANT FEATURES

A 280-watt power supply is used, and the unit’s dimensions are 16 95 by 16 25 by 4 95 inches. Plants of all stages of development can benefit from this product. 112 LEDs (including 10w double LEDs) are used in total. It is equipped with anti-rust and dustproof properties to ensure long-term durability. The design of the 90° Reflector Cups has been improved to allow for better absorption of light by the plants.

Niello 24 led grow light is equipped with 10-watt double clip LEDs, which produce more intensity light within the grow tents than the competition. Due to the fact that it is dustproof, moisture-proof, and built of rust-free material, it is extremely sturdy and long-lasting in use. The fact that it has a high life expectancy of more than 100000 hours makes it a wise purchase for those who enjoy gardening, since it is both cost efficient and long lasting. WHAT I APPRECIATED

It has a lifetime of more than 100000 hours and comes with a three-year warranty. Utilizing noiseless application during the use of quiet fans with aluminum frames
Includes a daisy chain, which allows the user to connect more lights to fewer outlets by connecting them in a chain. This light source provides a whole spectrum of light for the plants, allowing it to be used throughout all phases of the plants’ growth. Includes four additional CREE COB LEDs, which results in higher par values and more light dispersion inside the canopy of the plant
It reduces energy consumption and increases crop yields as a result of its higher luminous efficiency, resulting in power and cost savings for the user.

WHAT DID NOT APPEAL TO ME Conclusion We’ve analyzed the top LED lights for 4×2 grow tents currently available on the market, and now it’s up to you to decide which LED light is the best fit for your specific needs and requirements. It is critical that you are aware of the primary characteristics of the product that you are purchasing, as well as the advantages and disadvantages that come with it. Whatever your requirements, whether they be for fireproofing, waterproofing, durability, or efficiency, the LED lights outlined above will more than fulfill your needs.

Ethan Fontole