What Size Light For 3X3 Grow Tent

The Best Grow Lights For A 3×3 Grow Tent – Pictures, Specs, And More

What are the greatest grow light options for a 3×3 grow tent and why are they the best? Take a look at one of the following alternatives: A Viparspectra P1500 (on a budget), a Mars Hydro TSW 2000 (on performance), a Spider Farmer SE-3000 (on the fanciest scale), or a 250 watt high pressure sodium grow lamp are all viable options (HPS option). When selecting a grow light for a 3×3 foot grow room, the light intensity and consistent coverage area of the lights are the most crucial elements to consider.

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

Budget Choice:Viparspectra P1500

(Click Here to View or Purchase LED Grow Lights from LED Grow Lights Depot.) A grow light producer that has been in business long enough to have sold numerous generations of best-selling LED grow lights, Viparspectra’s P1500 is the most up-to-date design in its line of LED grow lights. I purchased the smaller P1000 model and posted a review about it on this site. In a 3×3 foot grow tent, this P1500 model will allow you to veg and flower. Is it the best-performing or the most powerful model available?

Why Choose Viparspectra P1500 for your 3×3 Grow Space:

I’ve spoken with growers that are completely satisfied with their Viparspectra grow lights. In fact, they have stated that they would not convert to another brand despite the fact that there are alternatives that provide superior performance. These Viparspectra owners are likewise enthusiastic about the product’s dependability. The excitement surrounding Viparspectra is a wonderful thing to witness for a brand. Having a dimming knob is quite convenient. As a result of the fact that this Viparspectra P1500 is not particularly strong, you may hang it near to your plants, so saving valuable overhead space.

Viparspectra P1500:
Watts Consumed: 150 watts
Peak Intensity: 1000 micromoles (enough for seed to flower)
Coverage Area: Flowers 3x3ft
Spectrum: 640-660nm (far red), 3000-3500K (white), 6500-7500K (white)
Dimmable? Yes
Voltage: 100v-240v
Warranty: 3 years
Where To Buy: Click Here
Video of my Viparspectra Grow Light:

TestResults for the Viparspectra P1000 Pro Series Grow Light | Overview

Performance:Mars Hydro TSW-2000

(Click Here to View or Purchase LED Grow Lights from LED Grow Lights Depot.) The Mars Hydro TSW-2000 is a quantum board-style LED grow lamp that was developed in the current era. This grow lamp has a coverage area of 3×3 feet for blooming and a coverage area of slightly greater than that for vegetative development. In order to fit my 2×4 grow tent at home, I purchased a Mars Hydro model in a different size. It looks and functions fantastically. This is one of the most popular LED grow light brands on the market today.

Why Choose Mars Hydro TSW-2000 for a 3×3 foot Grow Space:

The TSW-2000 is a bit more powerful than the Viparspectra P1500, which was mentioned previously in this article. You’ll have to spend a little more to get that extra performance, as well as a few other things. With that stated, if you have the financial means, it is absolutely worthwhile. Your 3×3 foot grow room will provide higher yields as a consequence of the increased light intensity. It is possible to detach the drivers from the TSW-2000 and hang them outside the grow tent using the additional cord length.

Its spectrum is comparable to that of the Viparspectra (white + red), with the exception that the Mars Hydro spectrum also contains infrared, which helps plants fight illness and produce more thick buds as a result of their exposure to this wavelength.

Mars Hydro TSW-2000:
Watts Consumed: 310 watts
Peak Intensity: 1150 micromoles
Coverage Area: Flowers 3×3 feet
Spectrum: 3000K (white), 5000K (white), 660nm (red) 760nm (infrared)
Dimmable? Yes
Voltage: 120v / 240v
Warranty: 3 year
Where to Buy: Click Here

Take a peek at some of the buds that have been developed using Mars Hydro grow lights.

Video of My Mars Hydro Grow Light:

Mars Hydro TSL-2000 Grow Light | Review and Demo | Mars Hydro TSL-2000 Grow Light

Click Here to See Prices and Reviews of The Mars Hydro TSW-2000 at LED Grow Lights Depot

Visit Amazon to see the book. (Click Here to View on Amazon) Spider Farmer is another respected LED grow light manufacturer, and their fancy, high performance grow light choice for a 3×3 foot area is available from them. This grow light is different from the other two 3×3 foot grow light alternatives that we discussed previously. It varies from the others because the design is newer and more efficient, the spectrum is the best, and it is also the most costly (but not by much). You’ll learn why you get what you pay for with the SE-3000 in the paragraphs that follow.

Why Choose the Spider Farmer SE-3000 grow light for 3×3 foot space?

I haven’t personally used this model, but I have used other Spider Farmer models in the past and am familiar with their product quality. In addition, I’ve come across growers in the community that favor Spider Farmer over other low-cost grow light manufacturers on a regular basis. In the case of the Optic 4 Gen 4 grow light, there are three reasons why you get what you pay for when you spend a greater price to install it in your 3×3 foot grow room. The first reason is that the design is in the style of a bar.

  • Never mind that the flat quantum boards are perfectly functional, and they will likely offer even better value now that they have aged a little and must compete with the newer bar style grow lights, which are becoming more popular.
  • I’ve noticed that the use of the ultraviolet spectrum in grow lights is becoming increasingly rare.
  • The only explanation I can think of is that grow lamp makers want to save money (what else is new?).
  • The third reason is the extremely bright light and the possibility to hang this grow light at lower heights than the previous quantum board designs, which typically hang at a height of around 18 inches.
  • When you install a SE-3000 grow light in your 3×3 tent, you will reap the benefits of all of these features.
Watts Consumed 300 watts
Peak Intensity: 1200+ micromoles
Coverage Area: 3×3 ft flower area
Spectrum: 660nm (red), 4800K-5000K (Cool white), 2800K-3000K (Warm white), UV, IR
Dimmable? Yes
Voltage: 120v / 240v
Warranty: 5 years!
Where to Buy: Click Here

If you don’t mind spending a little more money for a high-quality product, the Spider Farmer SE-3000 is an excellent choice.

This is especially true if you are growing in a 3×3 foot space.

HPS Option: HPS Grow Light

CLICK HERE to view or purchase this item on Amazon. It’s possible that this dimmable 400 watt HPS grow light will work well for you if you have a 3×3 foot grow tent and don’t mind utilizing a non-LED grow light instead. This grow light is priced almost the same as the inexpensive Viparspectra choice above, but it will offer you with far more illumination. Although it is a more ancient technology than LED, it has the benefit of having a same price point while producing greater light, which will be more beneficial for high-yielding cannabis plants.

Is it necessary to be concerned about heat while using a high-pressure sodium grow lamp in a 3×3-foot grow space?

Really, the only time you need to be concerned is when your power output reaches 400 watts or above.

Why Choose a HPS Grow Light for a 3×3 Foot Grow Tent?

  • 3×3 foot flowering space
  • Provides the performance of a more costly LED grow light at a more affordable price
  • Flowers a 3×3 foot flowering space Consumption is only 250 watts, which is quite low.

Click Here to View or Buy the FloraLux 250w HPS Grow Light on Amazon

FloraLux HPS Grow Light
Watts Consumed: 250 watts
Coverage Area: 3×3 feet
Spectrum: RedBlue spectrum bulbs sold separately
Where To Buy: Click Here

Which of these grow lights would I personally choose for a 3×3 foot grow tent?

After reading my lists, many growers contact me to seek for my advice. My personal preference for a 3×3 foot grow tent would be either the Mars Hydro TSW-2000 or the Optic 4 Gen 4 (which are both available from Amazon). Both of these lights are excellent choices, and I believe you will be pleased with any one. The Viparspectra could be a little more powerful, and I personally prefer LED grow lights over high-pressure sodium (HPS) grow lights. I don’t advocate the 250w high-pressure sodium lamp, although I do talk to folks who are on a limited budget from time to time.

Is 3×3 feet the best grow tent size?

In my view, a grow tent of 3×3 feet is not the optimal size. You can fit one to two plants, but with the suggested spacing of 2×2 feet per plant, even two plants with a humidifier can get crowded very fast, especially if you have a humidifier. 2×4 foot grow tents or 4×4 foot grow tents are my preferred sizes. Grow tents of 2×4 feet and 4×4 feet have been discussed in detail, as have the best grow light solutions for these sizes.


When growing cannabis in a 3×3-foot grow tent, the fewest amount of electricity required is 40 watts per plant, while the best grow lights require at least 200 watts for the entire tent.

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

In a 3×3 grow tent, two cannabis plants may 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 3×3 grow tent?

For a 3×3 grow tent, an inline fan with a capacity of 150 to 175 cfm will be sufficient ventilation.

How do I control temperatures in a 3×3 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 3×3 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 light for 3×3 grow tent?

Comments received on August 14, 20200 Remember that most cannabis plants, especially larger ones, require at least 2 × 2 feet of room, if not more, which means a 3 x 3 grow tent will easily accommodate one plant. One of the most significant elements to consider when selecting a cannabis grow lamp for an area of 3×3 feet is the light intensity and uniformity of the light covering area provided.

If you choose the incorrect grow light for your plants, they will not reach their full potential. All of the alternatives I’ve listed below fulfill or surpass those standards.

Spider Farmer LED Quantum Board

  • DB:0dBChips Brand:SAMSUNG
  • 3 x 3 ftVegetable Footprint2 x 2 ftFlower Footprint3 x 2 ftMaximum Yield2.5g/watt 90 percent relative humidity Lifespan is around 50000 hours. Infrared 760nm
  • Wavelengths: 660nm, 3000K, 5000K, and infrared 3000K
  • Frequency: 50-60Hz
  • At 120V, the amp is 100.5W5 percent
  • At 240V, it is 98.5W5 percent
  • At 277V, it is 98.39W5 percent. Ten percent draw power (AC120V): 100.5W5 percent
  • 98.8W5 percent at AC240V
  • 98.39W5 percent at AC277V
  • Lighting lumens: 16439Lm5 percent at alternating current 120V, 16327Lm5 percent at alternating current 240V, 16292Lm5 percent at alternating current 277V
  • The LED has a viewing angle of 90° to 120°. Temperature range for work: -4°F to 115°F (-20°C to 46°C)
  • LED Grow Light (SF2000)
  • Chips (SAMSUNG)
  • Model:SF2000 LED Grow Light. 3 x 4 ft. Vegetable Footprint Two by four foot flower footprint
  • Maximum yield of 2.5 grams per watt
  • DB:0 decibels
  • Humidity 90 percent
  • Lifespan of 50000 hours Voltage range: AC100-277V
  • Lumen: 34500Lm5 percent at AC120V, 34460Lm5 percent at AC240V, 34530Lm5 percent at AC277V
  • Amp: 1.67A @AC120V, 0.84A @AC240V, 0.73A @AC277V
  • Input voltage range: AC100-277V
  • Lumen: 34500Lm5 percent at AC120V, 34460Lm5 percent at AC240V, 34530 Input power: 202.3W5 percent at 120 Volts, 196.7W5 percent at 240 Volts, and 196.6W5 percent at 277 Volts
  • Product Code: SF4000 LED Grow Light
  • Chips Manufacturer: SAMSUNG
  • Yield Max: 2.5g/watt
  • Veg Footprint: 6 x 6 foot Five-by-five-foot flower footprint
  • Decibel level of zero
  • Humidity of ninety percent
  • Life span of 50000 hours. Input Voltage:AC100-277V
  • Lumen:79296Lm5 percent @AC120V, 79095Lm5 percent @AC240V, 79395Lm5 percent @AC277V
  • Amp:[email protected], [email protected], [email protected]
  • Input Voltage:AC100-277V
  • Input Voltage:AC100-277V Draw power: 456.9W5 percent at 120V, 438.2W5 percent at 240V, and 439.8W5 percent at 277V
  • 456.9W5 percent at 240V
  • 439.8W5 percent at 277V

ECO Farm FLD 320W Full Spectrum Dimmable LED Grow Lights

SPECIFICATIONS FOR THE FLD3000: The LEDs used are 1296 pieces of Samsung 281B+ diodes. Voltage range: 100V to 270V (alternating current). Working Conditions: -20°C to 40°C, 45 percent relative humidity to 90 percent relative humidity Frequency of operation: 50/60Hz Dimensions of the product: 57*54.6*3 cm 7 kg is the total weight of the package. HPS has a life expectancy of 100,000 hours. Replacement:☑3000W Full spectrum includes 3000K, 5000K, 660nm, and infrared. White that is a little warm 3000K:1008PCS Deep Red 660nm:42PCS Blue White 5000k:144PCS Blue White 5000k:144PCS Deep Red 660nm:42PCS 6PC at 760nm in the infrared Consumption of actual electricity is 320 watts.

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ECO Farm V4 Pro Samsung 301B/301H Chips With Sperately UV+IR Control

1. High yielding Samsung LM301B/LM301H LED Chips are among the best available. 2. A silicone covering with an IP65 rating. 3. Samsung Normal Spectrum: Full Spectrum, 660nm+730nm, 660nm+730nm+385nm, 660nm+730nm+385nm, 660nm+730nm+385nm. 4. It is possible to diversify greenhouse vegetables, flowers, and plants for culture illumination by using fluorescent tubes. 5. Separate dimming of the color control system: Two Mean Well HLGpower supplies to control white light, one Mean Well ELGpower supply to control red light (660nm and 730nm), and one domestic power supply to manage UV (UV light is difficult to control owing to its low power).


Growers frequently spend many hours researching different grow methods and attempting to get the best grow equipment on the market. Lighting is a piece of equipment that is particularly challenging to investigate because of its complexity. There are various different types of lights that may be used for plant growth, as well as hundreds of distinct technical criteria that must be understood. As a result, learning about and filtering through the hundreds of grow lights available on the market today is quite difficult.

  1. In this post, I’ll provide my recommendations for the Best LED Grow Lights for the year 2021.
  2. Only entire fixtures are available for purchase.
  3. There is no particular order in which the grow lights are listed.
  4. Because prices are always fluctuating, we recommend that you click on either the Amazon link or the LED Grow Lights Depot link beneath each light to see the most up-to-date pricing.
  5. See this comprehensive Buyer’s Guide for LED Grow Lights for more information.
  6. The fixture has an extremely thin profile, measuring only two inches in thickness.
  7. It also features an interesting folding design, which, depending on the grow tent, may be customized to meet the canopy area available in the growing environment.
  8. Enlite Ceres 520w is equipped with full-spectrum Samsung LM301H diodes, with a particular emphasis on the red wavelength for enhanced end yields.
  9. Finally, the Enlite Ceres comes with a 3-Year Limited Warranty, which is consistent with the policies of most respectable LED grow light manufacturers today.

520 watts attage draw Area of coverage: Vegetative Four-foot-by-four-foot, flowering-three-foot-by-three-footLight distance: six to twelve inches The following are the measurements: 34.0 “x 34.0″ x 2.0″ x 34.0” Weight: 26.8 kg Warranty: Three-Year Limited Manufacturer’s Warranty Growers Choice ROI-E420 LED Grow Light is a high-performance LED grow light.

  • With a sleek, narrow design that allows it to harness the power of intense LEDs, this fixture produces a PPF of 1090 mol/s and a system efficiency of 2.60 mol/J while maintaining a low profile.
  • Only 420 watts are required, which should result in a 40 percent energy reduction compared to a typical HPS light.
  • Only GC-3K Full Phase Spectrum Osram Top Bin Diodes are used in the construction of the Growers Choice fixture, which is widely regarded as one of the best diodes currently available on the market.
  • This LED grow light has a suggested hang height ranging from six to twenty-four inches above the ground, depending on the application, and it includes an integrated dimming feature.
  • All Growers Choice products, including this ROI-E420 model, are backed by a 3-Year Limited Warranty against manufacturing defects.
  • LED Grow Light Depot is a web address.
  • 420 watts attage draw Area of coverage: Vegetative The plant grows to four feet by four feet and flowers to three feet by three feet.

Dimensions: 35.3 inches by 34.6 inches by 3.2 inches “Weight:19.4 kg Warranty: A 3-Year Limited Warranty is provided.

This Electric Sky 180 V2 (ES180 V2) from Green Sunshine Company has a comparably low power consumption (at just 180w), yet it produces high-quality PAR efficacy of 2.30 mol/J, making it a cost-effective LED grow light option.

This particular spectrum promotes vegetative development while also increasing floral production.

The ES180 V2 has a BPFD of 582 mol/s/m2 in this scenario, which is a high value.

It has plenty of headroom, with a recommended hang height ranging from 18″ to 36″.

The Green Sunshine Company is a link to their website (Discount code: MRGROWIT) Hydro connection is a joyful occasion.

LEDs: GS1 Wideband Spectrum, with continuous response from 400nm to 780nm.

wattage draw: 180 watts Area of coverage: Vegetative The plant grows from 1.5 x 3 ft to 2 x 4 ft, and the flowering period is from 2 x 4 ft to 2.5 5 ft.

Dimensions are 24.5″ x 12″ x 2.4″ in width and weight is 14.5 pounds.

This fixture, which consumes just 225 watts and has a system effectiveness of 1.9 mol/J, is suitable for use throughout both the vegetative and bloom seasons.

This has been created with a light diffuser to allow for better canopy penetration, according to HLG.

It’s the perfect light for a 3′ by 3′ grow room because of its compact size.

Heat dissipation is significantly reduced in the absence of mechanical components.

LED Grow Light Depot is a web address.

Dimensions: 8″ x 3.5″ Warranty: Three-Year Limited Manufacturer’s Warranty The HLG 300L V2 RSpec LED Grow Light is a high-performance LED grow light.

These boards make use of Samsung LM301H white LEDs, which are among the highest-quality LEDs available in the market.

The machine puts out 700 mol/s, which is sufficient to replace a 600 watt high-intensity discharge lamp.

This model is suitable for a vegetative grow space of 4′ x 4′ or a somewhat smaller blooming region of 3′ x 3′ (see illustration).

HLG designs and produces all of their LED grow lights in the United States, and they provide a three-year limited warranty on their products.

Click here for an Amazon link LM301H and Deep Red LED from Samsung are used as light sources.

voltage draw:90-270 watts (dimmable) Area of coverage: Vegetative Four feet by four feet, flowering 2.5 feet by 2.5 feet or three feet by three feet Distance between lights: 18″ to 24″ The following are the dimensions: 26″ x 10″ x 3″” Weight: 12.38 kg Warranty: Three-Year Limited Manufacturer’s Warranty 4VS LED Grow Light for Timber Grow Lights The Timber Grow Lights 4VS LED grow light offers a somewhat different spin on the traditional LED grow light.

  • Instead of using standard chip diodes, this fixture makes use of four Vero29 Gen 7 COB type LEDs instead.
  • Timber believes that, in the absence of reflectors, it is safer to lower these lights closer to the canopy of the tree.
  • A three-year limited warranty is also included with all Timber grow lights, which has been the industry standard in recent years.
  • This LED grow light is conveniently preassembled, allowing for a quick and simple installation.
  • PPF: 932 mol/s PPF: 932 mol/s Efficacy of PAR: N/A 425 watts of power are used.
  • When it comes to economical, Chinese-made options for growers on a tight budget, the Parfactworks 1000W model is a good choice.
  • There is an excellent canopy coverage thanks to the high wattage of 380 watts.
  • Even so, after evaluating this LED grow light, I believe it is best suited to a flowering grow space of around 3′ by 3′.
  • The lifetime of this Parfactworks unit has been estimated to be 50,000 hours.

Area of coverage: Vegetative Lighting Distances: 18 inches to 40 inches Plant Size: 4′ x 4′ Flowering Size: 4′ x 3’Lighting Distances: 18 inches to 40 inches 3 inches in height; 15.7 inches in width; 7.8 inches in depth; Weight: 7.7 kg Warranty: Three-Year Limited Manufacturer’s Warranty FGI Square is an abbreviation for Financial Globalization and Internationalization.

  1. Its design is unlike anything else available on the market.
  2. A 4′ by 4′ vegetable space can be covered, while 3′ by 3′ flowering spaces can be accommodated in this configuration.
  3. There is an additional six percent of 720nm infrared plus and twenty-seven percent of 660nm red in them, making them a full-spectrum product.
  4. For flowering, this is the best spectrum available.
  5. FGI, in contrast to other LED grow light manufacturers, does not have a warranty policy in place.
  6. Including 6 percent infrared at 720nm and 27 percent red at 660nm PPF: 700 micromoles per second Efficacy of PAR is 2.3 mol/JW.
  7. in weight Warranty is valid for 5 years.

Mars Hydro created the TSW type to replace 450 watts of high-intensity discharge lighting; however, because of the power of LED grow lights, these fixtures only consume 300 watts.

Because to the inclusion of a reflector, Mars Hydro has increased its power factor by at least 30%.

When using an LED grow light, there are no fans or mechanical parts, which means there is no noise and very little heat output, making it ideal for use in small spaces.

They come with a three-year limited warranty.

Click here for an Amazon link LEDs: Epistar Full-spectrum 3030 chips, warm white, blue light, red light, infrared, warm white, blue light, red light, infrared PPFD is 980 mol/m2/s.

wattage draw: 300 watts Coverage area: 4′ x 4′ for vegetative, Flowering 3′ x 3′ in size Distance between lights: 12″ to 24″Dimensions: 19.6″ x 17.3″ x 3.5″ “Weight: 7.7 kg Warranty: Three-Year Limited Manufacturer’s Warranty Which LED grow light on this list do you believe is the best, and why?

I’d also want to hear from any growers that have experience with these LED grow lights.

PROCEEDINGS:LED Grow Light Buying Guide CATEGORIES:Beginners Begin With This Seeds and Planting SuppliesGrowing Equipment Grow Room is a place where plants may grow. Nutrients Cloning during the seedling stage Stage of VegetationFlowering Stage of Vegetation Harvest Plant-Related Issues

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.

  1. Herbs and lettuce, for example, are examples of plants with minimal light requirements since they do not blossom.
  2. 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. 3.
  4. Alternatively, you can measure the plant (s).
  5. It is time to get started once you have obtained those three pieces of information.
  6. 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 ways you may employ.

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.

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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

The alternative method for determining your MH and/or HPS lighting requirements is to look at the wattage requirements. Cannabis, for example, requires between 30 and 70 watts per square foot of canopy to thrive, making it an ideal plant for growing indoors. I would recommend a minimum of 50 watts per square foot of floor space. If money is not a problem and heat is not a concern, increase the power to 65 watts per square foot. Let’s have a look at the previous example once again. The one with a 200-square-foot floor space, to be precise.

In such case, ten 1000-watt lights (10,000 / 1000 = 10) or seventeen 600-watt bulbs (10,000 / 600 = 16.67, which we round up to 17) would be required.

By working backwards, we can see that the preceding technique would provide coverage of 40 watts per square foot (eight bulbs each at 1000 watts = 80,000 total watts divided by 200 sq ft area = 40 watts per square foot).

You may check my reviews of the best bargain HID kits if you’re not sure which brand is the best choice.

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.

That doesn’t rule out the possibility of figuring it out. In this case, there are three options to examine. I’ll list them in descending order of difficulty, starting with the easiest (and least accurate) and progressing to the most challenging (but also the most accurate).

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.

  1. Many Chinese manufacturers do not even employ theoretical watts in their products.
  2. 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).
  3. They frequently bury it in the bottom of the page, but it is virtually always visible at the top.
  4. Consider the following illustration.
  5. 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.
  6. This lamp has an actual power of 615w, therefore if we used 10 of these, we would have a total of 6150 watts.
  7. Consider the following scenario: you have a 3×3 grow tent.
  8. At 30 watts per square foot, you’d need a total of 270 watts to cover the area.
  9. As a result, to illuminate this space, you would want an LED grow lamp with an actual wattage of 270 to 360.
  10. As a result, the efficiency of the light is not taken into consideration with this technique.
  11. 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.

  1. I’m sure you’re curious in how output is assessed and what level of output is considered satisfactory.
  2. 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.
  3. 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 get best results.
  4. You want to acquire at least 100 umol/m2/s, but preferably more.
  5. A PPFD footprint will be provided by reputable manufacturers (also referred to as a PAR footprint or a PAR chart).
  6. Most of the better lights will not have sky-high readings in the centre (and hence much lesser readings around the perimeter), but will instead have decent readings all across the place (even if the manufacturer just supplies the number 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.

Best LED Light for 3×3 Grow Tent

LEDs are the most dependable lights available, delivering the precise quantity of light to plants that they require during their active development periods. The plants move through many phases and require a variety of natural and manufactured resources such as air, light, and water to survive. The only thing that is lacking is sunshine, which is not accessible in the indoor plantation environment. As a result, LEDs may be used to stimulate the photosynthetic process in plants. There are many different types and sizes of grow tents available for the various sizes of plants that require appropriate development.

Furthermore, during the precise stage of growth, the plants required blue, red, and multicolor light as well as white light. We thus propose the finest LED grow light for a 3×3 grow tent in order to achieve the best possible outcomes. Here’s a quick look at our top five grow lights:

  • Best Overall –BESTVA DC Series Full Spectrum LED Grow Light
  • Best White LED Light –MARS HYDRO TS Led Grow Light
  • Best Triple-Chip Grow Light –Exlenvce LED Grow Light
  • Best for Seedling –BESTVA DC Series Full Spectrum LED Grow Light by Skylaxy
  • Best for Seedling –BESTVA DC Series Full Spectrum LED Grow Light by Pick-King Plus Double Chips LED Grow Light is the best budget pick.

1. BESTVA DC Series Full Spectrum LED Grow Light

Seedlings grown in a closed environment do not thrive because they do not receive adequate sunlight. There are, however, a variety of technical solutions available for simulating sunshine. Fortunately, the best LED grow light has been shown to give concentrated frequencies as well as an excellent culture environment for growing plants. BestVA DC series lights are an excellent choice if you’re looking for the finest illumination for producing weeds, tomatoes, and peppers. They’re also affordable.

  1. Furthermore, this fuel-efficient, rising light conserves energy by consuming only 185 watts of power.
  2. Not only that, despite the fact that he stands at 24 inches in height.
  3. Aside from that, the BESTVA light provides exceptional cooling.
  4. This ultra-powerful 1,000w LED light pump consumes fewer resources, making it easier to manage your growing environment and harvest your crops.

Product Features:

  • Coverage of the vegetable area: 3 square feet at 32 degrees
  • In addition, it consumes less energy and emits no annoying sounds. It has the same power as a 600w HPS yet consumes just 185w when in use. It is equipped with a timer, allowing you to schedule your plant development cycles in record time. It is a high-quality, long-lasting item produced by a reputable company. Unlike normal bulbs, it runs at a temperature of 50-60 degrees Fahrenheit. It is most effective for 1-6 plants. Its measurements are 12.2 x 8.26 x 2.36 inches
  • It weighs 0.75 pounds. It generates 70% less heat than a high-intensity discharge sun. Weighs around 7 pounds. The product has a 100,000-hour lifespan.


  • Warranty coverage for three years, as well as a 30-day return policy
  • It is ideal for blooming seedlings. The entire spectrum, including ultraviolet and infrared
  • Light increase producer who is dependable


  • Bestva’s light is not protected from the elements
  • Unless properly insulated, the complete spectrum of BESTVA light is extremely intense and can cause eye injury if not properly protected.

2. MARS HYDRO TS Led Grow Light

The Mars Hydro TS LED lights have a sunshine range, which ensures a superb result in the shortest amount of time. It was widely assumed that the heat spectrum would be larger than that of a single red or blue light source. As a result, you will achieve the best possible growth results with this low-cost LED grow light. When you get the appropriate LED lights for development, you might save a significant amount of money. This energy is identical to natural sunshine and may be used at any time of day or night, making it excellent for all phases of growth.

Another factor that effects the growth of your plant is the amount of useful light available, which includes the spectrum.

The peak and edge capacities of the TS-1000 LED will be 590uMol and 400uMol, respectively, at the peak and edge of the LED.

It is constructed in a fan-less design.

Product Features:

  • The good output from a low-power consumption system that is equivalent to a 400-watt high-intensity discharge system The area available for vegging is a little larger, measuring 3 by 5 feet. The most effective and efficient product on the market
  • In addition to being dimmable, it can be taken out of the fixture and placed outside your grow tent to help keep the heat down. 4-5 years without changing the bulbs
  • Modern Design Revised
  • High Efficacy
  • Light Strength Distributed Across the Board Money-back guarantee for 30 days
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  • Low operating costs
  • Fanless design
  • Affordable pricing
  • No loud noises


  • There is no possibility of power transfer
  • Any dissatisfaction with the process of heat generating

3. Exlenvce LED Grow Light

Daisy Chain, which uses a 1200W LED, connects a number of lamps together to manage the temperature of the surrounding area and minimize the need for excessive insulation. The power supply that comes with it is available in two different configurations. It could either be linked to the normal outlet and then into the Daisy Chain outlet of another rising light, or it could be connected to the regular outlet and then into the Daisy Chain outlet of another rising light. A normal 110/120VAC power supply for a growth light will consume around 2.0 Amperes of electricity.

Other chains of up to three rising lights each may be utilized to provide additional lighting.

Therefore, you should not be required to acquire an additional cable in order to daisy link your devices.

The reflectivity of this 1200W LED grow light is rather good, in fact. Because of its 15W triple-chip LED structure, this light is both more potent and more powerful than the competition. You might be interested in learning more about the best grow light for the indoor citrus tree.

Product Features:

  • Designed with a triple-chip function
  • A Daisy chain outlet has been included. Customers may benefit from a 4-year guarantee and outstanding customer service with this lighting system
  • One of the finest for 4 to 8 plants and a 3 by 3 tent is this one: Coverage over the entire spectrum


  • It is compatible with a 1.5-meter power cable capacity
  • It has a life expectancy of about 100,000 hours.


  • The cooling system is a touch noisy, but not excessively so
  • Yet,

4. Full Spectrum LED Grow Light by Skylaxy

Fully spectrum LED (light-emitting diode) illumination is intended to mimic natural sunlight. It gives flowers and vegetables with the whole spectrum of light, as the name implies, allowing them to thrive to their maximum potential. The timed energy extender1 to 3 transformer that comes with this led grow light is included. You can attach two grow lights to a single starter in an instant. Every day, at the same time as the gadget is installed, the lamps will be switched on and off by themselves automatically.

  • It is also lightweight.
  • Nicely spread 3×3 feet in a short amount of time.
  • Flowers are not damaged by the high-temperature evaporation of nature or by the fluorescent light, which does not get too hot.
  • Come together with the Timed Power Cord and Connector, which are the perfect partners for our 2pack of LED rising lights.

Product Features:

  • The input voltage range for this device is between 85 and 265V, with a frequency of around 50/60Hz. 12.2″ x 12.2″ x 1.4″ (L x W x H) are the dimensions of this item. The product has a life duration of more than 50000 hours. The optimal operating temperature ranges from -20°C to 50°C. It’s a light commodity with a low density. It comes with a timer, which is a nice feature


  • Grow led lights that have been updated to provide greater light
  • Exceptional design for heat dissipation
  • Especially suitable for seedlings


When it comes to LED lights, there are three factors to consider: light stimulation, spectrum, and exposure at the appropriate height. The King Plus 1500W LED Grow Light is most likely better suited for growth rooms or growing tents that are less than 4.5′ x 4.5′ in dimensions. It differs from other low-cost LED grow lights in that it makes use of 10-watt chips, which produce greater and more powerful illumination. 1500W Double Chips from the King Plus line. Your plants will be able to develop much more than they would otherwise be able to since LED Grow Lights are available in a wide spectrum of hues.

When in operation, it takes three critical and required measures.

Quality LEDs, substance, completely distinct VEG and BLOOM toggles, and system efficacy are all associated with a higher quality of life when using LEDs.

Product Features:

  • The latest 10W chip technology
  • Improved penetration of the canopy
  • Higher-quality, longer-lasting architecture
  • And more. Stage VEG and BLOOM switches are available in two configurations
  • Proactive Customer Support Programs are available. There is no need for an additional ballast, it is just plug and play. The power consumption on the wall is 386 watts, which is a better harvest than we got with the 400 watt HPS we were using.


  • It has a sturdy feel to it and is composed of high-quality materials. Simple plug-and-play operation
  • Light and visibility are exceptional
  • The device is energy-efficient. Heat is controlled to an incredible degree.


  • Failure of the exhaust fans—see below for further information
  • There is no way to join many units together, therefore there is no daisy chain throughout the growing space.

Buying Guide for 3×3 Tent Grow Light

Whenever you want assistance in determining the ideal led grow light for3 grow tent, you must take certain factors under consideration. We intend to provide you with dependable information and knowledge on how to select LED lighting for growing. There are a slew of additional aspects that must be considered.


It is important to understand what size of led light you require and for what purpose you will be using it. First and foremost, you must select where you will place it, such as your grow room, in order to establish the appropriate tent size. Per square foot of grow chamber, you must use at least 50 watts of LED lighting to achieve the desired results. If you want to flood your plants with light or run a commercial farming operation, you’ll need a large grow space and plenty of sunlight.

Allow me to explain the calculation, the length of the grow space, and the multiple of the breadth of the grow space. Then increase the result by 50W, which gives you the wattage need for your growth area.


Because plants have varying responses to light, the quality of the led light is critical to its effectiveness. Natural sunshine is essential for the growth and sustenance of all plants. Your crops must be able to diffuse light uniformly across evenly distributed dark and hot regions that are under-exposed or over-exposed, hence increasing the amount of PARavailable to the plants. Moreover, it has the potential to have a detrimental influence on the overall quality of the harvest.

Light intensity:

When it comes to growing space, you need the proper quantity of light intensity for the stage of growth that the plant is in. Your plants may experience excessive or insufficient light intensity at various points during the day. Both of them are detrimental to the growth of your plant. A 250-watt high-pressure sodium (HPS) grow lamp should be considered for a 3-3 foot grow tent.

Tent Type:

Choosing the right tent for your grow room is important when determining how many led lights to use. The sort of tent you choose will be determined by the type of farming that you will be doing. Tents are divided into two categories. Two types of tents are available: a multi-room tent and a single chamber tent. If you want to use it for professional purposes, such as growing several types of crops, a multi-chamber tent is the best option. Alternatively, if you only want to grow one sort of crop, a single chamber tent is ideal.


The cost of led lighting is high, which explains why the cost of expansion through led lighting is significant. The cost of lighting is decreasing, while the quality of lighting is improving. The price range for the lights is $500 to $2000. The old high-intensity discharge (HID) arrangement is less costly than the LED lighting configuration. It makes no difference to people who want to create high-quality products in big quantities; for them, it is all about output.


The vast majority of LED lights operate without any issues whatsoever. However, some users have complained that the fans have become damaged, the LEDs have failed, or the driver has failed. Check their guarantee before making a purchase to avoid being concerned about possible difficulties with LED lights. All of the problems will be resolved by the manufacturer. LEDs have a warranty period ranging from one to ten years, however the majority of businesses provide warranties of three to five years.

FAQs on LED Grow Light for 3×3 Grow Tent:

All you’ll have to remember is that some weed plants, particularly the larger ones, should be given at least 2 × 2 feet of room, if not more, and that a 3 x 3 growth tent will accommodate a wide variety of plants. The frequency with which the lights are turned on and the uniform coverage area of the fixtures appear to be the most important aspects. If you pick the inappropriate growth light for your plants, they will be unable to produce to their full potential. The options I’ve listed below meet those requirements, making them the finest led grow light for 3×3 tent on the market.

A new set of econometric approaches would be used for the led grow light for a 33 tent.

According to the information provided above, power output is not the most reliable instrument for determining the strength of a rising light that is required for a certain coverage area.

What is the equipment for a small cannabis growing room?

It is really vital to understand the cannabis that you will be using for your plants before you begin. This will assist you in comprehending the gathered resources that you will require. It is also crucial to understand the sort of plant system you will be growing since there are two types of plant systems. The first is passive, while the second is active; the passive setup of planting is simple, however the other tasks are more difficult to do. Allow me to walk you through the basic steps.

  1. Look for an appropriate location
  2. Make your space as bright as possible
  3. Make sure you have adequate light coverage throughout the setup. Having an adequate air exchange system

How do I control the temperature in a 3×3 grow tent?

If you find that the tent is becoming too cold, you will need to purchase a heater for the room. While if you find the temperature to be too high, I will provide some suggestions below.

  • Move the grow tent
  • You must relocate the grow tent to the coolest part of your home, such as the basement or any open regions
  • It is turned on by air conditioners
  • If you do not want to move their location, air conditioners are used. It is simple to just open the tent window during the cold months. Add CO2 to the grow tent
  • The addition of CO2 is also the most straightforward method of lowering their temperature. Cannabis plants can withstand temperatures that are greater than normal. Iceboxes, and the process of building iceboxes, requires a little imagination, but it is doable

How to grow marijuana plants at home?

It will be easier to produce healthy marijuana plants if you provide your cannabis plants with a combination of six resources, which I will outline below. These six materials are necessary if you want to produce anything anyplace, whether indoors or out.

  • Lighting, some individuals use domestic LEDs that are not intended for this purpose, but it is beneficial to feed plants with artificial light. The LED grow light is designed specifically for the purpose of growing plants. However, if you have access to natural sunshine, you won’t need to put up all of this additional lighting. Temperature is also an important consideration for marijuana plants. If you are feeling hot, the temperature for marijuana plants is high
  • If you are feeling cool, the temperature for marijuana plants is low. Fresh air should be sent to the location where the air exchange is optimal. It is possible to set up a fan in your grow tent to improve air circulation. Growing media, which is the medium in which you will grow the plant soil, is not an option for you. Water is a vital resource for all living beings on the planet. Nutritional supplements for plants
  • You may obtain free nutrients and mix them into the water.


LEDs are a critical component in providing a high level of output for indoor plantings. Modern study has discovered that the sun offers plants with a wide range of spectrums to choose from. For natural and productive development, we employ LEDs with varying spectrums to replace sunlight as a substitute for natural light. In addition, the intensity of the lights varies depending on the stage of development of the plants. In this section, we discuss the best LED grow light for a 3×3 tent. In addition, give a comprehensive buying guide.

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