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Black Friday Sale! Discount Code: blackfriday15 for 15% off
Black Friday Sale! Discount Code: blackfriday15 for 15% off

(Sold Out - Slim 500S Dimmable LED Grow Lights 3500k - Spectrum Control - LH351H v2 (UV)

Save 35%
Original price $999.00
Current price $649.00


500 Watt Dimmable LED Grow Light

                      USA Orders: Sold Out

                      Europe & UK Orders: Sold Out

                      Canada & Japan Orders: Sold Out

                      Outside USA Orders: Sold Out


(Commercial Orders - inquire for turnaround time)


           Slim500S is engineered to be the most powerful and efficient LED Grow Light to ever join the 500 Watt Class of LED Grow Lights. The New Samsung Version 2 LH351H Deep RED LEDs rated at 3.75 umols/J And the new Samsung LH351H Royal Blues, Paired with the Samsung White LM301H LEDs with a 2way dimmable system running 2,082 LEDs total for next-generation efficiency and tuning capabilities. Slim 500S is by far the most advanced LED Grow Light in its class. Slim 500S when combined with our touch screen master controller gives growers the power to recreate mother nature with precision accuracy and deliver strain-specific lighting.
          Slim 500S has all the best components in the industry but is also designed to last 2-3 times as long as other grow lights today. Dimmers come standard with Slim series lights as well as the industry's most overbuilt cooling system & the longest-lasting Meanwell Drivers. Optic LED was the first mainstream LED Grow Light company to begin using Samsung's latest Horticulture Series LM301H and now we are the first to use their newest record-setting technology the version 2 LH351H Diodes. 

NEW! Samsung LH351H - 3.75 umols/J

253-881-1355 or inquire at

- For Commercial Quantities email us for special pricing. 

Coverage Footprint:

Flower:                                           Veg:           

4' x 4' area (1.2m x 1.2m)                4' x 4' area (Up to 6' x 6' area)

Max: 5' x 5' area (1.5m x 1.5m)   

Hanging Height & Dimmer Settings : 

Seedling: 48"+    / 25% Power
Vegetative: 48" + / 50% Power (or 24" @ 25% Power)


Wk1-3 - @24-30""     / 50% Power
Wk4-6 @18" - 24"  / 75% Power
Wk7-8 @18" - 24"  / 100% Power
Wk9-10 @12" - 18" / 100% Power
Pro Tips: It's always best to set the light up higher and let the plants grow up into the light.


Slim 500S Components:

LEDs: 2,082 Total LEDs 

Samsung LM301H 2,016 pcs

- Top Bin Samsung LM301H LEDs  3000k & 3500k Mixed

Double Row Bloom Enhancers:








Red LEDs: 36 pcs

- New! Samsung LH351H V2 660nm Deep RED LEDs 3.75 umols/j

Blue LEDs: 24 pcs

- New! Samsung LH351H 450nm Royal Blue - 2.8 umols/j                

Ultra Violet LEDs: 6 pcs (Faint Dim Purple LED)

- LG UV LED - Proven Increased Resin Production and Potency


Optics: 120 Degree Primary Lens on all LEDs


Drivers: Meanwell Dimmable Driver 0%-100% (Industry Best)


Dimmers: 2 Independent Dimmers


Dimmer#1 ( Blue and White LEDs Channel)

Dimmer#2 ( RED and White Channel)

Controller Tech: Fully Compatible - (*Touch Screen Controller is Sold Separately)

Spectrum Control - 2 Way Spectrum Control, add more Blue or Red light independently or programmed in the timer mode.

Dual Port RJ-11 Controller hookup  - Daisy unlimited amounts of lights

Thermal management: Passive Cooling from a significantly Overbuilt extruded Heat sink on 6 Individual Bars (Fanless Technology - No Moving Parts) 

*Coolest Operating Temp of any High Power Bar Fixture on the market.



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

+ 660nm Deep RED 450nm Royal Blue + ultraviolet

 (Powerful Spectrum Control leads to healthier plants with lower stress levels leading to higher overall production, yield, and flower quality)



Test in 4' x 4' Area: 1.2m x 1.2m = 1.44 Square Meters

PPFD Slim 500S: 1,100

(Tested with Apogee MQ-500 meter in 4x4 / 1.2m x 1.2m Tent @ 500w)  

6" Hanging Height PPfd:  1,100.81

8" Hanging Height PPfd:  1,073.09



Slim 500S Specifications:

Grams Per Watt: up to 2.8

Yield: Up to 1400 grams / 50 oz / up to 3.12lbs

HID/HPS equivalency: 1100 watts DE HPS 

Kelvin: 3500K Day Light White

IP Rating: IP65 Waterproof

LEDs Per Watt: 4.16 

PPFD @6": 1,100.81

ppf/w :  3.2 umols/J

Actual Max Power Draw: 502 watts max

Amps:  4.3 Amps at 120v (2.2 Amps @240v)

Voltage : Internationally Used 110 volts - 277volts (240v cord sold separately)

Lifetime: 100,000 Hours+  

Warranty: 10 Years full warranty (Industry Best)

Release Date: February 2021

Shipping: Free Shipping to 60+ countries 

Light Fixture: 42" x 42" Vertical Farming Aluminum BAR Fixture - folds in half

Cables: 6 Foot attached power cord 

Plug: USA, CANADA, EURO, Commercial, etc. (240v sold separately)

(We automatically ship the correct cord for your country)

Dimming: 2 Dimmer Knobs 0%-100%. 2-Way Spectrum Control 

Spectrum Control: 2 Dimmer Knobs 0%-100%. 2-Way Spectrum Control 

TouchScreen Master Controller: 2 ports, Fully Compatible. 2 Dimmer control 0%-100%

Fixture Dimensions: 42" x 42" x 4.5" 

Fixture Weight: 28 lbs (Aluminum Fixture + Driver Case)

Shipping Weight: 38 lbs

Hanger: Comes with 4 adjustable rope ratchet hangers.

Recommended for: Grow Tents, Grow Rooms, Greenhouses & Indoor Cultivations. 

*International Shipments may require Taxes & Duties. Contact us for a quote! - 

Slim 500S Patent Pending.


253-881-1355 or inquire at

 *Compatible with the Optic LED Master Controller ($149.00)


Also, check out our Instagram page for more videos @OpticLEDGrowLights


Slim 500S Videos Page. Click here!!!






VEG Dimmer Only

Bloom Dimmer Only

Driver Box with 2 MeanWell Drivers inside

Double Row LED Strip Boards with Optic Slim Tech (LM301H & LH351H Reds)