Best LED Light for 4X4 Grow Tent (2021 Reviews)

A 4X4 grow tent is innovatively designed for all growers.

But for you to be able to cultivate all year round, you will need the best LED light for 4X4 grow tent. The light will create an optimal environment for your indoor plants to thrive.

The choice of LED grow lights for 4 by 4 grow tents, however, is huge on the market and not all indoor growers know what to look for. So, a little research is necessary

In our top seven selections, we have taken into account all the important features you would want a four-by-four to grow tent LED light to have.    

Top Pick

KingLED UL2000 LED Grow Light is our top pick. This new release is the most liked and the bestseller. It comes with an innovative reflective aluminum hood that increases brightness and PAR output by 30% in a 4X4 grow tent. It offers high PPFD output of up to 2100.

The Best LED Lights for 4X4 Grow Tent Are:

KingLED UL2000 LED Grow Light

This upgraded LED grow light from KingLED provides a sunlike full-spectrum, high PAR output, and wider coverage for a 4X4 growing space.

Key Features

  • SMD LED technology
  • Precision dimming system
  • Daisy chain connection
  • Spotlight cover
  • Waterproof protection

KingLED UL2000 LED Grow Light is powered by SMD LEDs, which is great because they provide higher lumen output for reduced energy consumption. This makes them more energy-efficient and powerful compared to conventional LEDs. The fixture also adopts a spotlight cover that not only delivers a strong light output but also a uniform and powerful canopy penetration for higher yields.

The powerful LEDs produce a real sunlike full-spectrum that contains 3000k, IR, red, 660nm,  blue, and white light. The IR, red, and 660nm lights are particularly useful when your indoor plants are blooming. They help boost flowering for bigger yields.

The light has an effective flowering footprint of 3.5 by 3.5 feet and a vegetative footprint of 4 by 4 feet. In a 4×4 grow tent, the light delivers a high PPFD of 2100 at 12 inches high, 1425 at 18 inches high, and 830 at 24 inches high. The spotlight shade enhances the PPFD at different grow light distances. You’ve got a precision dimming system that can be set at 60% during germination, 80% during flowering, and 100% during fruiting.

The unit comes with a high-level waterproof construction for added durability. You can also daisy chain connect up to three units by using the provided aviation waterproof connector.

Pros

  • Higher lumen output for reduced energy consumption
  • The spotlight cover enhances canopy penetration
  • Has a superior footprint for all the growth stages
  • Allows you to dim the LEDs in different stages of growth
  • Easy to daisy chain up to three fixtures for added coverage

Cons

  • Could be better and more durable with Zener diode technology

Verdict

It is time you upgraded from the old LED lights and experience the energy efficiency, higher lumen output, and higher PPFD values of this incredible light from KingLED.

Overall Rating: 4.9

AOSBEIC Full Spectrum LED Grow Light

This amazing grow light from AOSBEIC is impressive for the money. It is one of the best choices for a hobby gardener with a 4X4 grow tent.

Key Features

  • High-efficiency LEDs
  • Optimal full-spectrum
  • Fanless design
  • Flexible dimming knob
  • Rapid cooling

AOSBEIC Full Spectrum LED Grow Light features high-efficiency LED beads, which deliver a rich sunlike spectrum. The spectrum is made up of 450nm (suitable for germination or sprouting), 470nm to 580nm (enhances photosynthesis), and 600nm to 680nm (suitable for blooming).

The grow light fixture has a very impressive PPFD map for a 4X4 grow tent. At 12 inches from the canopy, you get a higher PPFD of about 1397. At 16 inches from the canopy, you get a maximum PPFD of around 850. At 20 inches from the canopy, you get a higher PPFD of about 570. The light is perfect for all growth stages.

The fixture has a fanless design, which is good because you don’t have to worry about noise when the light is operational. Instead, the lamp is fitted with a hollow aluminum diecast construction that is very effective at dissipating heat in three hundred and sixty degrees. The lamp beads and the drivers will not be affected by overheating.

There is a flexible dimming knob that allows you to conveniently adjust the wattage to match the light requirements of a specific growth stage. The dimming knob has no percentage marking but just engravings.

Pros

  • The high-efficiency LEDs deliver a rich sunlike spectrum
  • Provides higher PPFD values at different grow light distances
  • The hollow design provides quick heat dissipation and cooling
  • Easy to adjust the voltage with the flexible dimming knob
  • The included hanging gear is easy to use

Cons

  • Could better if it came with a timer

Verdict

This grows light fixture will be an excellent boost for your seedlings. It is easy to hang and has a precision dimming knob function.

Overall Rating: 4.9

Hyphotonflux HPF4000 LED Grow Light

This high-performance grow light fixture from Hyphotonflux is super bright as expected and it does not add excess heat to a 4X4 grow tent.

Key Features

  • Folding design
  • High-performance LEDs
  • All-aluminum light bar
  • Mean well driver
  • Precision dimming

Hyphotonflux HPF4000 LED Grow Light features high-yielding LEDs that are exceptionally bright and energy-efficient. This makes the fixture a great replacement for HPS light rated at 1000 watts.

The lamp’s full spectrum is produced by warm white light (3000k), red light (660nm), and pure white light (4000k). The red light is efficient for photosynthesis, the pure white light is good for vegging, while the warm white light is suitable for flowering. The full spectrum promotes rapid plant response, speeds up flowering, as well as boosts yields.

The light produces high PPFD values at different grow light distances. At 18 inches it produces a maximum PPFD output of 1547, at 12 inches high it produces a maximum PPFD value of 2365, and at 24 inches high it produces a maximum PPFD output of 1098.

The fixture comes with a high-performing mean well driver, which is good because it is an external power supply that enhances heat dissipation. The driver has an actual power rating of 480 watts, input voltage of 100 to 277 volts, and extends the lifespan of the light by 150000 hours. The driver also comes equipped with a dimming knob with intervals at 0%, 30%, 60%, 80%, 95%, and 100%.

But here is the thing, this model doesn’t have any defined cooling system, you might have to buy a six-inch clip fan.

Pros

  • The folding design is super easy to mount
  • The mean well driver has a precision dimming knob
  • The LEDs are super bright and energy-efficient
  • Delivers high PPFD values at different grow light distances
  • The full-spectrum is perfect for all growth stages

Cons

  • The light doesn’t come with a defined cooling system

Verdict

This new release will surprise you with its exceptionally high PPFD outputs at different heights, and the dimming function is precise.

Overall Rating: 4.8

LeFreshinsoft 1000-Watt LED Grow Light

With this high-performance grow light from LeFreshinsoft, you can expect a wide coverage area, high PAR values, and higher yields in a 4X4 grow tent.

Key Features

  • Bridgelux dual-chip LEDs
  • Daisy chain function
  • Efficient cooling system
  • Double switch design
  • Hanging gear included

LeFreshinsoft 1000-Watt LED Grow Light has an effective core coverage area of four by four feet.

To achieve the best growth performance in a 4 by 4 growing space, you are advised to hang the light at 24 to 30 inches high during seed germination, 20 to 24 inches high during the growing stage, 18 to 20 inches during flowering, and 15 to 18 inches high in the fruiting stage.

The light is powered by dual-chip ten-watt LEDs, which are twice as bright as ordinary LEDs. They are remarkably energy-efficient when you compare them to MH or HPS lamps of similar watt rating. The full spectrum is produced by 5000k, 3000k, 730nm, and 660nm LEDs.

This fixture comes equipped with upgraded heat sinks and two high-speed fans, which provide you with a strong cooling system for enhanced heat dissipation. Increased heat dissipation reduces operating temperature while extending the lifespan of the lamp to about fifty thousand hours.

You can easily hang the light in your four-by-four grow tent by using the provided stainless connection wires and lifting pulley. The lifting pulley allows you to adjust the height of the fixture for the appropriate plant grow stage. We truly appreciate the daisy chain connection that makes it easy to link up to three units for a wider coverage when you have a growing area that is larger than 4X4.

What we don’t like about this fixture is the fact that some models may come with pretty noisy fans.

Pros

  • The unit delivers high PPFD values for superior growth
  • The strong driver with a high-performance sensor prevents overheating
  • The strong cooling system keeps operating temperature down
  • Easy to hang and adjust the height with the provided hardware
  • You can daisy chain up to three units in a larger growing space

Cons

  • Some models from this brand may come with noisy fans

Verdict

This is a great product for the money and the customer service is amazing. You should expect it to boost your yields by a good percentage.

Overall Rating: 4.7

KingLED 1500-Watt LED Grow Light

If you are looking for a high-performance LED grow light for your 4X4 grow tent, then look no further than this great model from KingLED.

Key Features

  • Upgraded SMD LEDs
  • Advanced reflector technology
  • Full-spectrum light
  • Efficient cooling system
  • Additional accessories included

KingLED 1500-Watt LED Grow Light is a great option for a 4×4 grow tent. The product has a core coverage area of 5.4 by 5 feet and a maximum coverage area of 6.4 by 6 feet.

The wide coverage area is perfect for all growth stages. For the germination stage, we recommend that you hang the light at around 30 to 36 inches. For the growing phase, we suggest you hang the light at about 24 to 30 inches. For the flowering stage, consider hanging the light at around 18 to 24 inches. For the fruiting stage, the light will give the best PAR values at about 12 to 18 inches above the canopy.

The light has the best ratio of color for a 4 by 4 grow tent, including 620 to 630 nanometers of red, 605 to 610 nanometers of orange, 380 to 410 nanometers of UV, 440 to 450 nanometers of blue, 730 nanometers of IR, and 6000k to 6500k of white. It provides high PAR outputs within the core coverage area that ranges from 892 to 1523.

The SMD and reflector technologies are highly energy-efficient and provide high PAR output values. The LEDs have exceptional penetration above the canopy.

But here is the, it is possible to receive a model with quality control issues.

Pros

  • The SMD LEDs are highly energy-efficient and brighter
  • The innovative reflector technology improves illumination and coverage
  • Multiple high-speed fans and aluminum radiators improve heat dissipation
  • Has the best ratio of color and high PPFD values
  • Backed by a three-year warranty and ninety-day guarantee

Cons

  • Some models may come with quality control issues

Verdict

This incredible grow light fixture from KingLED delivers a superior full-spectrum and exceptionally high PAR values for a 4 by 4 growing space.

Overall Rating: 4.6

Growstar 2000-Watt LED Grow Light

This amazing 2000-watt grow light is a perfect choice for a 4X4 grow tent. It delivers high and effective PPFD outputs of up to 1297 for superior growth and yields.

Key Features

  • Waterproof LED board
  • 3mm aluminum heat sink
  • Sunlike full-spectrum
  • High PPFD values
  • Two removable drivers

Growstar 2000-Watt LED Grow Light features a waterproof LED board that is packed with high-performance LED chips. The full spectrum is made up of IR LEDs, red light LEDs, daylight LEDs, and warm white LEDs. The light offers the most effective spectral ratio that your indoor plants will depend on to thrive.

The LEDs are highly energy-efficient, consuming only two hundred and twenty watts, making the fixture one of the best options for replacing traditional 2000-watt HPS or MH lamps.

It offers impressively high PAR values at different grow light distances. Your plants get a maximum PPFD of about 1297 at 12 inches high, around 445 at 24 inches high, 213 at 36 inches high.

The unique and innovative construction of this model does contain any noisy fans. But you’ve got a three-millimeter aluminum heat sink that is very effective at dissipating heat. You’ve also got two external drivers, which help improve heat dissipation. Another good thing about this fixture is the fact it doesn’t contain exposed cables.

But the thing is, you can easily receive a model with superficial blemishes.

Pros

  • The heat sink board improves heat dissipation
  • The LED board has superior waterproofness
  • The fanless technology ensures there no noise
  • The light is highly energy-efficient
  • It delivers brighter light and high PPFD values

Cons

  • It is possible to receive a model with superficial blemishes

Verdict

This amazing light is bright with a good mix of veg and bloom LEDs. It will not produce excess heat that can burn your precious plants.

Overall Rating: 4.6

Unit Farm UFS3000 LED Grow Light

Have you been looking for a high-performance LED grow light for your 4X4 indoor hydroponic grow tent? Look no further than this great model from Unit Farm.

Key Features

  • OSRAM reliable diodes
  • Fast-cooling aluminum board
  • Sunlike rich spectrum
  • Removable ballast
  • UL listed

Unit Farm UFS3000 LED Grow Light features premium-quality OSRAM LEDs, which are more energy-efficient and brighter compared to Cree LEDs.

The OSRAM LEDs deliver a sunlike rich spectrum that has many benefits for your plants. The light has five types of LEDs, IR, 660nm, 2700K, 5000K, and UV. The red light is suitable for stimulating growth, the green light activates ignored photoreceptors, the blue light makes your plants stronger, the extra UV helps create taste and smell, while the additional IR boosts blooming.

The fixture is capable of delivering superior PPFD values at different heights. At 12 inches high, it outputs PPFD values of up to 1579. At 18 inches above the canopy, it outputs PPFD values of up to 798. At 24 inches high, it outputs PPFD values of up to 560.

For a 4X4 tent, you are advised to hang the light at 22 to 24 inches for clones, 22 to 24 inches for germination, 18 to 20 inches for seedling, 16 inches for vegetative, and 12 to 14 inches for bloom.

The fixture has an ultra-thin aluminum panel cover, which is good because it improves heat dissipation. The removable driver and long power cord make temperature control easy.

What we don’t like about this light is the fact that it doesn’t come with a dimmable function.

Pros

  • The OSRAM diodes are brighter than the competition
  • Delivers a sunlike rich spectrum with high PPFD values
  • The ultra-thin metal panel improves heat dissipation
  • The driver has overvoltage, short circuit, and overcurrent protection
  • It is easy to hang LED grow light

Cons

  • It does feature a dimmable function

Verdict

If a better budget and value is what you want for your indoor plants, then this great grow light fixture from Unit Farm is what you should go for.

Overall Rating: 4.5

Things to Consider When Looking for LED Lights for 4X4 Grow Tent

Here are the most important things to consider:

Optimal Full Spectrum

Some brands will claim that their lamps produce a full spectrum. But that is not usually the case. You have to check the quality of the LEDs and the types of lights the brand claims they produce. An optimal full spectrum will have the best ratio of color and PAR output for boosting germination, seedling, flowering, and fruiting.

Efficient Cooling System

Choose a unit that is equipped with upgraded high-speed fans for cooling and high-performance heat sinks for effective heat dissipation. You want to make sure that there is no overheating in the tent to avoid damaging your plants.

Final Thoughts

For this roundup, the winner is KingLED UL2000 LED Grow Light. This light is the best choice for any indoor grower who wants to upgrade his or her indoor grow lighting. The lamp is not only lightweight and easy to set up, but also quiet-running. it is exceptionally bright and will flood your tent with effective PAR values for superior plant growth and bigger yields.

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