The FGI Square 3 LED Grow Light for Amazing Results in Flower

FGI Square 3 LED Grow Light, Extended PAR 400-760nm Spectrum, Built In Dimming.


Regular price $ 499.00 $ 369.25 Sale


The FGI Square 3 is our original 320W full spectrum + red + far red LED flowering light. This light can run full cycle from seedling to veg to flower. Our innovative square within a square within a square is designed for maximum light coverage and intensity.

Meet the Square 3

Maximum yield and potency is always our goal. The Square 3 lives up to it's reputation as our top 3x3 LED grow light. Grow with precision and control using the built in variable dimming. 


Cover a 3'x 3' area at 800 umols/ms uniformly, veg up to a 4' x 4' at 400 umols/ms uniformly. 


What makes the Square different? We add both 720NM (far red) diodes as well as 660nm (red) diodes along with 4000K CCT full spectrum.


The Square 3 produces uniform PAR over a 3'x3' space due to it's unique design. Ideal hanging heights depends on your grow environment. For a 3'x3' tent for example, the ideal height above finishing flowers will be 30". PAR levels will be about 650 umols on average.

For growers who supplement with CO2 the hanging heights can be reduced to 24" which will improve light intensity.


Top quality construction including a clear lens to protect the diodes from overspray. A full 5 year warranty provides peace of mind. And a 60 day no-hassle return policy means no regrets.

We've built everything we know about growing in to this compact 22" x 22" unit and its lightweight too at just 18 lbs. It's easy to handle and hang in any grow space.

The FGI Square 3. Give your plants the gifts that Mother Nature provides in the wild.



Brand name: Shenzhen Lideda

Number of pieces 960

CCT   4000K

CRI 80


Other color Diodes (Red)

Brand Name: Shenzhen Lideda

Number of pieces 256


Wavelength 655-665nm

Other color Diodes (FarRed)

Brand Name: Shenzhen Lideda

Number of pieces 64


Wavelength 730-745nm

Ratio mix white/red (%) 3:1

Product Warranty/Longevity  

Warranty (years) 5 years

Lifetime (L-90) - in hours 50,000 hours

Photosynthetic Light Measurements  

PPF Output* 700 umol/s

PPF Efficacy* PPF 2.3 umol/J

Photopic Light Measurements

Luminous Flux* 50,000 lm

Luminous Flux Efficacy 160 lm/w


Input Power Watts 310W

Input Voltage 110V

Cord length 8' (2.44m, 18AWG )

Plug type (note if bare whip) Molded 110V

Product Dimensions  

Dimensions W x L x H (inches) 22 x 22 x 3.5

Weight (pounds) 13

Operating Temp range (F) -20℃ — +40℃

IP rating IP20

Rating CSA

Physical Dimensions  

Package Dimension W x L x H (inches) 27 x 26 x 6.5

Dimming / Tuning  Dimming (Yes/No) Yes

Product Warranty (see our warranty here)

5 years

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