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5 Best Grow Light For 3×3 Tent (2023 Reviews)

A 3×3 tent is a size required by many intermediate and beginner growers. Beginners or even experienced growers are always looking for different equipment to help their plants grow better.

And if you have a 3×3 tent, it’s no wonder you are looking for the best grow light for 3×3 tent.

When buying a suitable model, these grow lights are the trusted identity for farmers. This makes them popular in large grow rooms and commercial facilities. The aluminum material dissipates the heat generated while working, eliminating the need for a fan. So you can keep your tent quiet.

These grow lights for 3×3 tent contain an IP65 water-resistant coating, freeing you from worrying about the sprinkler system. Not to point out how incredibly reflective they are. This is because 90 percent of the light is absorbed by plants, which triggers their development.

EXLENVCE Full Spectrum 1500W 1200W Grow Light for 3x3 Tent Best Grow Light For 3x3 Tent 2
EXLENVCE Full Spectrum 1500W 1200W Grow Light for 3×3 Tent – via

Factors to consider when buying the best grow light for 3×3 tent

Aluminum-plastic or plastic heat sink

The components that ensure the operation of the grow light are more likely to fail. The main danger for the chip is overheating. Good heat dissipation ensures the long and correct operation of the grow light chip.

Since the production and processing of metal is a relatively expensive enterprise, there has been a launch of aluminum-plastic radiators. The aluminum cup is placed inside the housing made of pressed plastic powder. The more powerful the light, the thicker this glass should be. 

Unscrupulous manufacturers save on what is not visible to the eye and make the metal part not correspond to the light bulb’s power. 

You can determine this by weight: take two similar lights with an aluminum-plastic housing and hold them in your hand. The better quality is the heavier one.


There are a few rules for choosing the best grow light bulb for 3×3 based on wattage. It consumes 8-10 times less than incandescent light and 1.5-2 times less than a fluorescent light. 

However, formula 1:10, declared by the manufacturers, is crafty. A 6W grow light will shine worse than a 60 W incandescent light because part of the energy will go to the heat sink.

In addition, the brightness of the grow light is dimmed by 20-30 % by a matte bulb. 

To not miscalculate when changing a regular light to 60 W, it makes sense to take a grow light and choose the correspondence not by watts but by lumens, in which the luminous flux is measured. 

You can easily find the correspondence table for different types of lights on the Web, and the light indicators are on the box. 

The more lumens per watt output, the better. On average, 700 lm is enough for a bedroom and about 1000 for a living room.

Color temperature

When buying the best grow light for 3×3 tent, consider the color temperature. You can look for it on the package. Color temperature is measured in kelvins and conditionally divides light into warm (up to 3500K), neutral (3500-4500K), and cold (from 4500K). 

What is the color temperature of grow light for 3×3? The higher the number, the colder the shade, and the more intense the glow in the blue spectrum. This spectrum is the most unpleasant for the retina and can cause vision problems with prolonged exposure.

The lens of a child’s eye is even more susceptible to blue, so it’s best not to use cold white grow lights in a nursery. Optimal is 2700 to 3000K, corresponding to a conventional incandescent light or sunlight. The lamp’s location is also essential, and you need to ensure there is no direct light entering the eyes.

Cold light is good on the street and neutral in the office. This is because it invigorates and mobilizes brain resources. The color temperature above 4000K is ideal for public and educational buildings.

Ripple factor

This is the crucial factor to consider when buying the grow light for 3×3 grow tent. A warm white grow light can be a nuisance if it has a high (over 20%) ripple factor.

Life hacks will help determine the level of pulsation. First, move the pencil back and forth in front of the lamp. If the pulsation is high, the silhouette will fall apart, and if it is low, it will smudge.

The second method looks even more straightforward. Point your smartphone at the lamp with the camera turned on; the ripple will be visible in the image: the more blinks and more stripes, the worse. 

However, there are nuances here. After a second of camera operation, many smartphones compensate for pulsations programmatically by launching the anti-flicker function. In addition, circuitry and firmware that processes light pulsations will be different at different cameras. 

As a result, you can both miss strong ripples and panic because of very strong flickers, although they will be high-frequency and harmless to the eyes.

Color rendering index

Another important factor to consider when buying the best grow light for 3×3 grow tent is the color rendering index that affects lighting quality. This is between the natural color of an object and the color under the light. 

The index is denoted by the letters CRI (Ra) and a number on a 100-point scale. Typically, the higher it is, the better the color rendering. Grow light for 3×3 with an indicator of less than 80Ra can significantly change the color of objects.

The color rendering index indicates how uniform the level of different color components is in grow light. At low Ra, shades are less visible. Such grow light is visually unpleasant, and it is challenging to understand what is wrong with it. 

Merge different shades into one, so it is better not to install them in apartments and offices. Sometimes manufacturers hide CRI in a class from 1 to 4 or in a three-digit number. Class 1A is a range of 90-100Ra, 1B is a little worse, 80-89Ra, and 2A is already 70-79Ra. 

The rest are best used outdoors. Three-digit number – for example, 927- indicates that the grow light has a color rendering index of 90Ra and a color temperature of 2700K.


This is the crucial factor if you want the best product. Some grow lights for 3×3 grow tent products a buzz, so it is vital to check them in the store. Even if the sound is quiet at home, it won’t be very pleasant. 

And remember that any light under consumer protection law can be returned within 14 days. In addition, grow light has a guarantee of 1-5 years. 

So save the receipt or take a picture of it with your phone. Therefore, consider the sound produced when looking for the best grow lights for 3×3 grow tent.

5 Best Grow Light For 3×3 Tent

1. Phlizon 1200W Full Spectrum Grow Light for 3×3 Tent

Phlizon 1200W Full Spectrum Grow Light for 3x3 Tent Best Grow Light For 3x3 Tent

Many people go for this best grow light for 3×3 tent from Phlizon because it looks beautiful. It is more effective than any reflector series light than the coverage area. Essentially, it perfectly fits a 3x3ft growing area with a height of 24 inches.

Similarly, it uses double cooling fans that can prolong the light life. If a short circuit happens reflector at 80 ℃ is easy to fire and melt. There is the veg switch, which is white LED and blue LED. It is used for young vegetative growth or seedling.

The bloom switch, white LED and red LED, is used for flowering or blooming. Sometimes you can use bloom and veg switches together. The view angle of LEDs is 120° and 90°. It has a 2-years warranty with a 30-day money-back guarantee

You will get the universal white LEDs and red-blue IR UV that offer everything the plant needs in natural sunlight. Typically, the UV and IR LEDs promote the plants’ defense mechanism, and red-blue LED is an ideal light for plant growth.

  • It has longer light life
  • Reduce chances of short-circuiting
  • It looks beautiful
  • Promotes plant growth
  • It has a double switch
  • Promote plants’ defense mechanisms
  • It comes with a warranty
  • Gives adequate coverage
  • It is affordable
  • Easy setup
  • Saves light energy
  • Sometimes fan gets noisy

2. VIPARSPECTRA Full Spectrum 900W Veg and Bloom Grow Light

VIPARSPECTRA Full Spectrum 900W Veg and Bloom Grow Light Best Grow Light For 3x3 Tent

The secret of this brow light from VIPARSPECTRA is the ideal full-spectrum lighting that provides the plants in all veg to flower stages with everything they require during the natural sunlight. Typically, this leads to higher yield and bigger buds and saves you on energy costs.

Additionally, it comes with bloom and veg switches suitable for every growing phase. Equally important, upgraded quiet high speed fans and advanced aluminum cooling heat sinks are ideal for heat dissipation.

When compared to the traditional lights, this model consumes only 405W. It is ideal for a vegetative coverage of 4’x4’ at 32” and a flowering coverage of 3×3’ at 24”. Thanks to the reflector design because it increases PAR output by 50 percent.

Furthermore, it comes with a 3-year hassle-free US local warranty and a 30-day return guarantee or satisfaction. This is the right product because you require a partner you may trust who can support you for years.

  • It has an optimal spectrum
  • It is ideal in every growing phase
  • Sturdy and durable construction 
  • Ideal for heat dissipation
  • It has outstanding design
  • Proper safety measurements
  • Ample light and broad coverage
  • It has fire-resistant reflectors
  • Double switching
  • Promotes plant growth in all stages
  • Hassle-free warranty
  • Increases PAR output
  • Long time subjected to light can cause eye straining

3. EXLENVCE Full Spectrum 1500W 1200W Grow Light for 3×3 Tent

EXLENVCE Full Spectrum 1500W 1200W Grow Light for 3x3 Tent Best Grow Light For 3x3 Tent

If you want the plants to grow quickly, go for this best grow light for a 3×3 tent from EXLENVCE. It comes with the 15W triple-chip LED design, making it more efficient and brighter when compared to one using either single or double chip LEDs.

Moreover, it comes with LED technology that is scientifically engineered to enhance light output and efficiency by using lower-powered LED chips. There is the veg channel, which uses a full color spectrum for germinating seedlings. The young plants consume 155W of power.

Equally important, you will get the bloom channel that implements more red wavelengths, simulating late summer. This is ideal for plants in the flowering stage, for it consumes only 80W. When used together, veg and bloom encourage the maximum growth performance between seedling and harvest.

The grow light has a coverage area of 4 x 4 feet with its maximum coverage area of 5.2 x 5.2 feet. You can use the power cord for both daisy chain and power features, so you do not need to buy a different cord for the daisy-chaining.

The model comes with a 4-year warranty, making it convenient because you can replace it if there is any defect. Also, it has a 90-day money-back guarantee with friendly customer service.

  • Allow the plants to grow quickly
  • More efficient and brighter
  • Simulates late summer
  • Encourage maximum growth
  • It has wide coverage
  • Super bright
  • It comes with a warranty
  • Easy to assemble
  • Highly energy-efficient
  • All phases convenient
  • It is not waterproof

4. MasterGrow FSGTEK Samsung High PPFD Dimmable Driver 1000W Grow Light

MasterGrow FSGTEK Samsung High PPFD Dimmable Driver 1000W Grow Light Best Grow Light For 3x3 Tent

The MasterGrow product has high energy efficiency because it runs 50 percent less power when compared to other Blurple, HPS, or SMD LEDs.

For one thing, it has the Samsung chips that offer outstanding resistance to humidity, chemicals, and heat. This ensures 100,000 hours of lifespan.

It is upgraded with a control box that lets you dim multiple lights with the daisy chains. More importantly, the dimming knob makes the full spectrum of light adaptable to plant germination, bloom, veg, and fruiting periods.

Additionally, the daisy chain lets you connect to about 12 lights. The plant’s full-spectrum light’s voltage range is 110V to 270V, suitable for professional commercial planting and personal growth enthusiasts.

Besides, you will get a 4mm aluminum board of 30% thicker than other plant lights. This means 1000 watts of plant light produce heat much faster. Also, it reduces heat production to allow growing light fixtures to be close to the plants.

Besides, the waterproof driver lets you use the grow light in the moist grow tent or greenhouse. What is more, it has 3-years worry-free warranty.

  • Provides outstanding resistance
  • High energy efficiency
  • Energy efficiency
  • No noise and waterproof
  • It comes with a warranty
  • Economic electricity consumption 
  • Longer lifespan 
  • Produce better crops 
  • Smaller spaces convenience 
  • Proper area coverage
  • Controls humidity
  • Not good enough for cannabis

5. SONLIPO SPB1200 Full Spectrum 120W Grow Light for 3×3 Tent

SONLIPO SPB1200 Full Spectrum 120W Grow Light for 3x3 Tent Best Grow Light For 3x3 Tent

This best grow light for a 3×3 tent from SONLIPO is ideal for seeding, flowering, vegetative, and fruiting. It prevents the plants from growing taller, making the stems grow thicker and increasing the number of flowers and size.

There are three full spectrums controlled by three switchs (VEG, BLOOM, and V&B) that are easy to adjust and use. The grow light has 660nm Red light, purple UV 390nm, IR 740nm, and 6000K, 4000K, 3000K, and 5000K white light spectrum, which are close to the natural sunlight.

Besides, this grows light has rotating dimmers that can help adjust the brightness of a light. It supports time reservation and timer setting functions for the convenience of working.

You will get the improved LED diode SMD technology, which provides increased light penetration, longer lifetime, and high PAR output. Compared to the traditional 300W CMH or HPS light, it saves about 55% on the electricity bill.

This grows light uses a high-quality quantum heat sink design and aviation aluminum material with no noise. Also, no installation, play, and plug, and it has a 12-month free warranty with a 90-day complete replacement or refund.

  • Easy to adjust and use
  • Increases plant yield
  • You can adjust the light brightness
  • It is high efficiency
  • Excellent heat dissipation
  • It is energy saving
  • It comes with a warranty
  • No installation required
  • Higher photon efficacy
  • More valuable and reliable
  • It is falsely advertised


When starting your growing experience using a 3×3 tent, you will encounter several difficulties. Typically, this is because the artificial nature-like environment must be provided for maximum plant performance.

The best grow light for 3×3 tent becomes the most important tool among all necessities. Go for the above product to reap many benefits because they have unique features.

For instance, they have an aluminum heat sink that keeps the light reflexively cool during operation, eliminating the need for fans. Also, they are solidly built and run silently.

Phlizon 1200W Full Spectrum Grow Light for 3×3 Tent is the best-selling product because it has double cooling fans, which prolong the light life. Likewise, it comes with UV and IR LEDs that promote the plant defense mechanism.

This model has attained the above factors because it has double cooling fans that prolong life. In the same case, it has UV and IR LEDs that promote the defense mechanism of the plants.