Are you searching for the best led grow light for 2×4 ft grow tent? I will help you to buy the best led grow light for your plants. Led grow lights are becoming more popular in the world than other lights because their exclusive properties. You can easily buy, set up and handle led grow lights for cannabis. However , this is a very good decision to buy led grow light.

Watts per square foot

The average LED grow light draws about 32 watts to cover 1 sq ft for flowering. Compare this to a typical HID fixture which rings in at 40 watts per square foot (assuming a 5’ x 5’ area, or 25 sq ft coverage area). Using an HID grow light in a 4’ x 4’ will bring the power coverage up to 62.5 watts per sq ft. (The energy saving that growers can expect from using LED grow lights instead of HID is around 38%. This energy savings only takes into account to savings growers gain when using LEDs fixtures. It does not account for other environmental factors where growers can save energy. For example, less ventilation and air conditioning may be used, or foregone completely, depending on the size of the setup and ambient temperatures. Total power savings may rise above 50% in certain scenarios.)

Different LED grow lights will have different efficiencies. More efficient LED grow lights will use fewer watts to emit the same amount of light that a less efficient LED grow light will exude. Therefore, as mentioned above, wattage is not the most accurate tool to know how powerful of a grow light you need for a particular coverage area.

A 4 x 2 foot floor space means you want about 280 watts at 35 watts per square foot, and 400 watts at 50 watts per square foot.

The most common LED systems out there only use about half the watts they advertise in their label.

And so I wouldn’t be surprised that your LED actually only uses closer to about 400 to 500 watts, and so you will probably be fine.

The most important factors to consider when choosing a grow light for a 2x4 foot grow tent are the light intensity and uniform coverage area of the lights. If you pick the wrong grow light your plants won’t grow to their full potential. All the options I mention below meet or exceed those requirements.

VIVOSUN VS1000 LED Grow Light with Samsung LM301H Diodes


LOWER COSTS & HIGH EFFICIENCY: VIVOSUN VS1000 LED grow lights use the latest LED plant light technology including Samsung LM301H Diodes, high-energy efficiency with 2.75 umol/J; Extremely high output but consumes only 100W of electricity, making it more efficient than traditional HID lamps and other plant lamps on the market

DIMMABLE BALLAST: The VS1000 LED plant lamp has a dimming knob that makes it adaptable to different growing periods of your plant; It can adapt to the growth needs of plants in different periods. The first choice for beginners and professional growers alike

SUNLIKE FULL-SPECTRUM LIGHTING: These VS 1000 full-spectrum LEDs deliver optimal light-spectrum coverage—more power for your blooms and maximum PAR output at various distances, with super-bright lights that your plants will love; This LED light increases yield while decreasing costs, especially if you compare it to HPS/CMH combos

LOW NOISE & LOW HEAT: The VS1000 LED has a unique appearance, with power supply and ventilation holes; No fans needed meaning low noise; Ambient heat is very low, so there is no need to worry about burns or damage to your plant; The heat is low enough so you can place the lamp directly above your plants.

ECO Farm ECO Blue 120/240W LM301H Quantum Board

Upgraded ECO Blue series growing lights have a dimming knob. A single light can be adjusted the light intensity at liberty.

Excellent full spectrum- 3000K/3500K diodes providing more reddish light. The 660nm red light is especially useful during bloom, where it speeds up flowering time and boost yields. Turn your seeds into your own supply. And the light looks fairly natural, so it's good for accurately monitoring plant health.

No Fan Noise Free. High Safety performance MEAN WELL Driver, Fair Waterproofing. Update aluminum board is thick and sturdy, doesn't put out a tremendous amount of heat, high-quality protective covers for cables; User-Friendly Packaging. Quality components mean the light lasts longer, but they also save you money.

ECO Blue is designed with a special color - Tiffany blue.

LED chip brand are Samsung lm301h and Epistar 660nm.

Dimmable & Full spectrum & Pre-assembled.

Waterproof cord and waterproof cover to protect the board.

Reliable passive cooled design, 4mm thickness plate.

Save 25% on at checkout. Code: ECOFarm25

Mars Hydro SP 3000 LED Grow Light

Best-Selling Samsung LM301B LEDs- 960pcs Samsung LM301B and Osram 660nm LED chips. These chips are higher quality, more efficient and only cost $0.41 per chip.

Upgraded Sun-like Full Spectrum- More warm white and red chips have been added. The spectrum is very beneficial for plants at all stages - from veg to bloom.

Large Yield & Increased Crop Quality- Featuring a 50% higher yield and quality compared with the old blurple lights and/or HPS lights. Turn an average yield of 1.8 g/W.

Daisy Chain Dimming Functionality- This upgraded model had a dimmer knob added which makes dimming more convenient. Up to 15 lights can be daisy-chained and controlled through just one light.

No-Fan Design, Aluminum Heatsink, and Removable Driver- The no-fan design means no noise or moving parts to worry about. Optimal heat dissipation while still using a thick, sturdy aluminum heatsink. It also has a removable driver, which allows you to upgrade in the future, and a 2 meter (about 6 ft) extension cord.

IP65 Waterproof- IP65 waterproof rating makes for a worry-free grow in high-humidity environments.