Compact Power, Professional Results.
The Forever Green Indoors Square 3 is a 310 W full-spectrum LED grow light built for medium size grow tents, home gardens, and research environments. Designed by commercial horticultural engineers, its square architecture delivers uniform PPFD coverage and maximum photon efficiency in 3x3 or 4x4 spaces.
-
Balanced Spectrum: 3000 K + 5000 K white with 660 nm deep red and 730 nm far red for natural sun-like growth.
-
Compact Efficiency: 2.8 μmol/J efficacy and up to 965 μmol/s total output — drives dense flower formation.
-
Plug & Grow Ease: Integrated dimmer, 120 V cord included, ready to hang with steel cables in minutes.
-
Commercial-Grade Build: Extruded aluminum chassis for cool, silent operation and extended lifespan.
-
Forever Green Indoors: A U.S. manufacturer trusted for US designed LED grow lights. Based in Seattle.
Grow better in tight spaces — with the Square 3 difference.
For both entry level and experienced growers. The innovative square design of the FGI Square 3 provides excellent light coverage and intensity over 3'x3' in flower, so you can be sure your plants are getting everything they need to thrive.
The easy to use wifi module allows control using your phone with our free Cloud Intelligence App.
The extended far-red spectrum delivers all the wavelengths your plants need for healthy growth, and the built-in dimming function allows you to customize the light output to suit your plants' needs.
Learn more about the FGI Square 3 on our YouTube Channel here:
So don't wait any longer, order your FGI Square 3 today and see the amazing results for yourself!
The FGI Square 3 Over Annual Starts
The FGI Square 3 LED Grow Light is perfect for the passionate indoor gardener. With a full spectrum plus deep red plus far red diodes, you can grow your plants from start to finish with ease. The square within a square design, unique to FGI, maximizes light coverage and intensity, giving your plants the light they desire to thrive. With 320 watts of power, this grow light is sure to give your plants the boost they need to grow big and strong. Order your FGI Square 3 today and start growing like a pro!
Key Features:
Compact size: 22" x 22" x 3"
Lightweight: 13 lbs
Watts Consumed: 320w
Built in dimming: Adjusts levels for young to mature plants.
Spectrum: Full spectrum plus 5% total 660nm deep red and 730nm far red LED diodes.
Includes: 110V power cord. Two clip and steel cable wire hangars. Product manual.
Spectrum From Our Sun
FGI Square 3 Extended Spectrum
Don't wait! We have limited stock on this LED. Buy yours today.
~Technical Specs~
Product
Diodes
Brand name: Shenzhen Lideda
Number of pieces 960
CCT 4000K
CRI 80
CRI
Other color Diodes (Red)
Brand Name: Shenzhen Lideda
Number of pieces 256
CCT NA
Wavelength 655-665nm
Other color Diodes (FarRed)
Brand Name: Shenzhen Lideda
Number of pieces 64
CCT NA
Wavelength 730-745nm
Ratio mix white/red (%) 3:1
Product Warranty/Longevity
Lifetime (L-90) - in hours 50,000 hours
Photosynthetic Light Measurements
PPF Output* 700 umol/s
PPF Efficacy* PPF 2.3 umol/J
PPFD: 1100 umols/ms at 24" (peak)
Photopic Light Measurements
Luminous Flux* 50,000 lm
Luminous Flux Efficacy 160 lm/w
Other
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: 3 years
Warranty does not include coverage for damage caused by water or exposure to VOC's or electrical damage caused by voltage spikes. We recommend using a basic power surge suppressor such as those found on power strips to protect your light from utility power outages.
