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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 650S Gen2 - Dimmable LED Grow Light - 650w (Triple Dimmer) 3500K (UV/IR) LH351H v2

Save 33%
Original price $1,499.00
Current price $999.00


Click the "Watch On Youtube"link to watch

650 Watt Dimmable LED Grow Light



                       USA Orders: SOLD OUT

                       ( New model Slim 650S Nextgen )

                      Europe & UK Orders: 3-7 Day Delivery

                      Canada Orders: 7-10 Day Delivery

                      Japan Orders: 3-7 Day Delivery


                                                 (Commercial inquires)



           Slim650S is engineered to give you performance far beyond what any other LED Grow Light company has in the market today including Samsungs all-new record-breaking LH351H Version 2 660nm Deep Red LED Chips at 3.75 umols/j and LH351H 450nm Royal Blue LEDs paired with the Samsung White LM301H LEDs which are above 3.0 umols/J with a 3way dimmable system running 3,096 LEDs total for next-generation efficiency and tuning capabilities. Slim 650S is by far the most advanced LED Grow Light ever manufactured. Slim 650S when combined with our touch screen master controller gives growers the power to recreate mother nature with precision control.
         Slim 650S is the first-ever Bar Light Fixture to deliver 3 Way Spectrum Control with Independent Dimmers for Red, Blue, and White LEDs. Early in VEG, you can crank up the blue dimmer to give you thicker stems, tighter node spacing, and bushier plants that yield better in flower. Early in flower if your plants are stretching too much you can also turn up the blue LEDs for less stretching. Then you can unleash the Samsung Deep Red LEDs to give you amazing flowering production, Dense buds & heavyweight yields. The list of benefits goes on, Slim 650S is in a very special class of LED Grow Lights that offer true spectrum control. 
          Slim 650S has all the best components in the industry but is also designed to last twice as long as all other grow lights today. Dimmers come standard with Slim series lights as well as the industry's most overbuilt cooling system & top quality, long-lasting Meanwell Drivers. Optic LED was the first mainstream LED Grow Light company to begin using LM301H and now we are the first to publicly disclose our collaboration with Samsung and use their newest record-setting technology with full transparency from their Horticulture Specific Line of LEDs.

NEW! Samsung LH351H V2 Deep Red - 3.75 umols/J


253-881-1355 or inquire at

- For Commercial Quantities email us for special pricing. 


  Click the "Watch On Youtube"link to watch

Coverage Footprint:

Flower:                                           Veg:           

4' x 4' area (1.2m x 1.2m)                4' x 4' area (Up to 7' x 7' area)

Max: 5' x 5' area (1.5m x 1.5m)   

         (4' x 4' Grow Tent / 1.2m x 1.2m)



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 650S Components:

LEDs: 3,096 Total LEDs 

3500k White LEDs: 2,992

- Top Bin Samsung LM301H LEDs  3000k & 4000k Mixed

Bloom Enhancers:

Deep RED LEDs: 64 pcs

- New to the market! Samsung LH351H V2 Deep Red LEDs - 3.75 umols/j

Blue LEDs: 32 pcs

 Samsung LH351H Royal Blue LEDs - 2.8 umols/j



INFRARED LEDs: 4 pcs (Dim Red LED)

- Top Bin Samsung LH351H Infrared LEDs   

Ultra Violet LEDs: 4 pcs (Dim Purple LED)

- LG UV LED - Proven Increased Resin Production and Potency of oils


Optics: 120 Degree Primary Lens on all LEDs

(No Secondary Optics on fixture)

Drivers: Three 0%-100% Meanwell Dimmable Drivers, Black Vented Housing.

Dimmers: 3 Independent Dimmers

Dimmer#1 (White LEDs Channel) - 500 watts

Dimmer#2 (RED Channel + UV & IR) - 100 watts

Dimmer#3 (Blue LEDs Channel) - 50 watts

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

3 Way Dimmability - You can Control the 3 Dimmers Independently

Spectrum Control - 3 Way Spectrum Control, add more Red, White, or blue light independently or programmed in the timer mode.

Dual Port RJ-11 Controller hookup  - Daisy chain up to 200 lights

Thermal management: Passive Cooling from a significantly Overbuilt extruded Heat sink (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 3 dimmers)

+ 660nm Deep RED 450nm Royal Blue + ultraviolet + 730nm Far Red


Dimmer#1 - Full Spectrum White Light LEDs only 

Dimmer#2 - 660nm Deep RED               

 ultraviolet + 730nm Far Red                  

Dimmer#3  450nm Royal Blue 


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

PPF/w: 3.15 umols/J

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

PPFD Slim 650S:

(Tested with Apogee MQ-500 meter in 4x4 / 1.2m x 1.2m Tent @ 640w)  

10" Hanging Height PPFD: 1,342  (3.01 umols/J)

18" Hanging Height: 

Slim 650S Specifications:

Total LEDs: 3,096

Model of LEDs: Samsung LH351H V2 Reds, LH351H Blue, LM301H White. 

PPFD @10": 1,342

ppf/w :  3.15 umols/J

ppf: 1,750 umols

Grams Per Watt: up to 2.8

Yield:  up to 3.6lbs in 4x4 (1.2m) / up to 4.06 lbs in 5x5 (1.5M) 

HID/HPS equivalency: 1300 watts DE HPS 

Kelvin: 3500K Day Light White Base + Deep Red + Royal Blue + UV + IR

IP Rating: IP65 Waterproof

Total LEDs : 3,096

LEDs Per Watt : 4.75

White LEDs - Samsung LM301H 6 LEDs Per Watt (500 Watts)

Red LEDs: Samsung LH351H .72 LEDs per Watt (100 Watts)

Blue LEDs: Samsung LH351H .64 LEDs per Watt (50 Watts)

Actual Max Power Draw: 650 watts max

Amps:  5.5 Amps at 120v ( 2.8 Amps @ 240v)

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

Lifetime: 25 Years 

Warranty: 10 Years full warranty (Industry Best)

Release Date: October 2020

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, 4 rope ratchets & 1 RJ-11 cable

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

(We automatically ship the correct cord for your country)

Dimming3 Dimmer Knobs 0%-100%. 3-Way Spectrum Control 

Spectrum Control: 3 Dimmer Knobs 0%-100%. 3-Way Spectrum Control 

TouchScreen Master Controller: 2 ports, Fully Compatible. 3 Dimmer control

Fixture Dimensions: 42" x 42" x 4.5" 

Fixture Weight: 40 lbs (Aluminum Fixture + Driver Case)

Shipping Weight: 50 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 650S 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 650S Videos Page. Click Here!!!


Unboxing Video

 Click the "Watch On Youtube" link to watch







Full Power

Slim 650S at 10% Dimmer Power













Double Row LED Strip Boards with Optic Slim Tech 


Dual Red & Blue Bloom Enhancers








Interesting Facts:

#1 - 1st Vertical Farming BAR Style Light to have 3 Independent Dimmers!
#2 - Slim 650S is the 2nd Vertical Farming Bar Style Light to carry 3.0 umol/J or above!
#3 - 1st Vertical Farming BAR style Light to ever feature 3 Way Spectrum Control!
#4 - 1st Vertical Farming BAR style Light to feature Samsung's NEW horticulture series LH351H Deep RED LEDs that are rated at an incredible 3.1 umols/J!
#5 - The only Bar Style Light on the mainstream market to feature Ultra Violet LEDs (for increased potency and resin production).
#6 - The only BAR Style Light to feature 3 independent dimmable drivers


Click Here to See More Details on Samsung Horticulture LEDs.