The FGI Square 3 Wifi Smart 3x3 LED Grow light with 730nm Far Red

FGI Square 3 V2 320w WiFi Smart LED Grow Light 3x3 4000k + 660nm + 730nm


Regular price $ 599.95 $ 565.95 Sale

We're excited to announce our new Hong Kong direct shipping program. This LED ships direct from our factory to you in about 10 days, usually less. Cost savings are passed along to you in our pricing.

Unboxing Video


Our new Square 3 V2 is the most advanced mid-wattage LED on the market today and the best light to buy for a 3'x3' flowering space.

Grow with precision using Cloud Intelligence, a free app for your phone. Control on/off schedules. Build sunrise/sunset scenarios. Check in on your lights from anywhere.


Meet Your Next LED Grow Light



Yield and potency. Always trying to improve. If you are a serious grower you need lights that are optimized in both spectrum and light intensity. There are very few lights built like the Square 3 V2 and no better company to do business with than Forever Green Indoors.  


The new Square 3 will put you in complete control of your grow lighting from anywhere on the planet. The included Wifi mesh controller connects seamlessly to the cloud. Just open the App and check your lighting levels and room temperature. The "set it and forget it" programming lives in the controller and not on the cloud so even if your wifi goes down your lights continue to follow the program.


Included WiFi and Push Button Dimming Controller


Free Cloud Intelligence App available on App Stores



  • Lightweight - just 13 lbs

  • Slim - 3" deep

  • Cool - won't add too much heat

It also has 4 push button dimming settings so you can pause to work with your plants under less or no lighting without interrupting the schedule.


build & spectrum

Our red + far red booster spectrum will help you grow the largest and most dense flowers. Super bright full spectrum 4000K diodes operate at an efficent 2.3umols/j plus 660nm red and 730nm far red diodes in a cool square within a square within a square design. This light can run full cycle from seedling to veg to flower.


Proven results with the Square 3 Far Red Spectrum


The Square 3 is designed for flowering in 3'x3' spaces at up to 1000 umols/ms. (CO2 recommended for this light level). Or grow at 800 umols/ms without CO2. It can be used for Veg when dimmed. And when fully dimmed can be used over clones and starts too.

Below are PAR readings with the lights at three different distances. At 24" expect PPFD to be above 1000 umols/ms, but not as uniform.

At 30" PAR will be above 750 umols/ms. This is an ideal light level if not using supplemental CO2. These levels are equal to a typical HPS grow space.

At 36" light levels become more uniform from corner to corner but at 680 umols are below what we'd recommend for flower.  

At 48", light levels are the most uniform and are perfect for mature veg plants. Use the built in dimmer to reduce intensity for young veg plants.


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


FGI Square 3 V2 WiFi LED Grow Light

Diodes (White)   

Brand name: Shenzhen Lideda
Number of pieces 960

CCT   4000K
Other color Diodes (Red) 
Brand Name: Shenzhen Lideda
Number of pieces 256
Wavelength 655-665nm
Other color Diodes (FR)   
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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