Optic GMax 300 Dimmable LED Grow Light

ECO Farm

GMax 300 delivers the most advanced Green House LED Grow Light Experience on the Planet. 1 Touch Screen gives you full control over multiple GMAX Lights so you can fine tune your lighting system with the Programmable Dimmers, Spectrum Control & Auto Sunrise. Your Gmax 300 Lighting System is fully versatile to grow any type of plants or Crops at any stage in their life cycles and do it at the highest level of performance possible between the Programmable Dimmers so you can set any level light intensity for any point during the day & Spectrum Controls.

GMax 300 is Equipped with the Latest in Horticulture LED Technology from Samsung with their new V2 LH351H  Deep Red LEDs (3.75 umols/J) which weren't expected to hit the mainstream until 2022, LH351H Royal Blue LEDs  and the LM301H full spectrum White light LEDs. GMax 300 sets the new standard for greenhouse style LED Grow Lights with Double Dimmer Spectrum Control and Controller Ports so you can control all of your lights together from 1 touchscreen and showcase the Auto Sunrise in your grow space.


NEW! Samsung LH351H v2 660nm Deep Red LEDs- 3.75 umols/J


253-881-1355 or inquire at Sales@OpticLEDGrowLights.com


Coverage Footprint:


1 Unit                                                

3' x 3' area (.9m x .9m)    

2' x 4' area (.6m x 1.2m)


2 Units                                               

4' x 4' area (1.2m x 1.2m)    

Hanging Height : 

Flower: 10"-24"    

Pro Tips: Wk1-3 @20"-30"  -  Wk4-6 @18"-24"  - Wk7-10 @12"-15" 

Veg: 24" - 30"    (@ 50% Power)

Seedling: 24" (Dimmed Down @ 35%)

Dimmers : 2

Dimmability: 0% - 100%

Dimmer#1 - Deep RED, UV, IR & Warm White LEDs


Dimmer#2 - Royal Blue & Cool White LEDs


Gmax 300 Components: 

LEDs: 780 Total

White LEDs: 

-  744 Samsung LM301H Horticulture series 3500k  

Bloom Enhancers:

- 24 Samsung LH351H V2 660nm Deep Red LEDs -

- 8 Samsung LH351H 450nm Royal Blues LEDs - 

- 2 IR and 2 UV LEDs

Optics : 

Samsung LM301H White LEDs: 120 Degree Primary Lens

LH351H V2 660nm Deep Reds: 120 Degree Wide Beam Primary Lens 

LH351H 450nm Royal Blues: 120 Degree Wide Beam Primary Lens 

Driver: Meanwell HBG Series Driver

(Built into a Optic Vented Driver Case with Dimmers & Controller Ports)

Thermal management: Passively Cooled


Full Spectrum White Light 3500k (Mixed White Light LEDs) (Full Power on 2 dimmers)

660nm Deep RED + 450nm Royal Blue + ultraviolet + Infrared



PPFD Slim GMax 300: 

(Tested with Apogee MQ-500 meter in 3x3 / .9m x .9m Tent)  

10" Hanging Height PPFD: 1,085


18" Hanging Height PPFD: 

Vertical PAR OutPut: 


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