1500 PPFD at 15

1500 PPFD at 15" The FGI Lightpanel 500 V2 for Flower Phase


Regular price $ 1,125.00 $ 995.00 Sale

The FGI Lightpanel 500 V2 is newly powered with the latest 2021 chips. Upgraded diodes create up to 1500 umols of PAR at 15". 

Designed in the USA, patented by FGI and made in the US in Spokane, WA, you'll love how this units fits neatly over a 4' wide grow tray or in 4' deep rack shelves. 

Suitable for both full scale commercial growing or home use in tents and small rooms, the Lightpanel 500 will exceed your expectations.

Controllable with our V2 Dimming Controller or using Trolmaster with an Adapter F, the Lightpanel 500 has two constant current drivers that dim to OFF. No switches or relays needed. 

Our light spectrum recipe is unchanged. We mix an equal number of warm white full spectrum diodes with neutral white Seoul Semiconductor 2835 diodes. These diodes produce 2.25 umols/j which we've found is the sweet spot for price and performance. We then add 36 Cree XLamp 660nm red diodes to push additional red energy to the canopy. And all the diodes have a new conformal coating, a rubberized seal to further protect the diodes from overspray in the grow. 

A five year warranty makes this a safe choice in a market filled with pretenders. 

This is a true commercial grade LED grow lamp. Designed and produced by Forever Green Indoors. The Plant Lighting Experts. 


Unboxing the Lightpanel 500 V2


Commercial Installation in Washington State 


Another Commercial Install 



Commercial grow operation in Oregon



Want more? FGI's YouTube Channel 

Enhanced Functionality 

The FGI 3 Channel Spectrum Tuning Controller allows for a robust fully passive hard wired interface to our bundled FGI Controller. Simple plug and play connections using standard CAT6 network cable.

Adjust warm white diodes, cool white diodes and red channel for spectrum tuning and dimming.

Connect up to 30 meters of our Lightpanel products and have complete control over your spectrum and PPFD at canopy!

FGI 3 Channel Color Spectrum Controller

FGI Controller Spectrum Tuning Examples

Color tuning your Lightpanel is easy and flexible. Increasing red or decreasing blue has been scientifically proven to change the structure and potency of your plants. 

Also available, but not included is our FGI Dimmer Control Module. Choose the controller that best fits your style. (FGI Lightpanel 500 Adapter Cable required). 

Spectrum Comparison vs HPS vs the Sun


lightpanel light spectrum

The Lightpanel 500 V2 full spectrum LED uses our patented 50% / 50% mix of warm and cool white LEDs, with added 660nm red.

In this new version we are using the latest and most efficient diode technology from Seoul Semiconductor. These diodes stack up directly to the popular Samsung LM301 B/H diodes used in our Uniformity Pro 640. However they are more cost competitive. Here is how the two diodes compare in terms of output. 

We use the .5 W 2835 (b) diode and use twice as many on our three 14" LED boards totaling 1260 full spectrum neutral white and warm white. Each diode is driven well under its .5 W capacity which leads to a longer lifespan at full light output. 




FGI LightPanel 500 V2

Light Source

LEDs: 1260 pcs, Seoul Semiconductor 2835 warm white and neutral white didoes with Conformal Coating. Plus 36 pcs, Cree X-Lamp 660nm Red diodes. 


2 pcs, YG PLY 240W-55-C6000-RN-P-12







Photosynthetic Light Measurements

PPF Efficacy*

2.25 Umol/j

PPFD @ 12"

1007 Umol/m²/s

Fixture coverage ( max intensity / max uniformity )*

4' x 3'  /  5' x 4''

Photopic Light Measurements
Luminous Flux*

69,480 Lumens

Luminous Flux Efficacy*

155.5 Lm/w


Input Power

450 watts

Input Voltage

100-277 autosensing

Volts / Amps

120v / 4.1a
240v / 2.1a
277v / 1.8a


44" L / 16" W / 2.4" H


18 lbs

Operating Temp range

0 F - 90 F

Thermal Management


BTU output

1700 BTU

Recommended Mounting height

Best PAR intensity


Best Uniformity


Dimming / Tuning

 0-10v with optional FGI Dimming Controller, Trolmaster Hydro X or other 0-10V dimming controllers. 

Dims To Off


Product Warranty (see our warranty here)

5 years


Customer Reviews

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