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Optic LED Slim 650S NextGen Dimmable LED Grow Light

SKU Optic.LED.Slim.650S.120V.NoController
Save 10% Save 10%
Original price $999.00
Original price $955.99 - Original price $999.00
Original price $999.00
Current price $899.99
$860.99 - $899.99
Current price $899.99


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Optic LED Slim 650S NextGen Dimmable LED Grow Light

The Optic LED Slim 650S NextGen LED Grow Light is the ultimate LED grow light experience and widely considered the best LED grow light ever manufactured. Equipped exclusively with Samsung Horticulture Series LEDs on the all new Triple Row Samsung LED boards giving you unprecedented light spread, tunability, flower quality & mega yields. Unleash the power of Samsung's 3.75 umols/J LH351H V2 Deep Red LEDs to give you amazing flowering production, Dense buds & heavyweight yields.

For the ultimate grow experience Slim 650S NextGen is loaded with Samsung's horticulture specific series LEDs with 1 of the fullest spectrum's ever produced on an LED grow light and fully programmable auto sunrise and sunset using the Optic LED Controller. Featuring Samsung's LH351H Infrared (IR) LEDs & LG Ultra Violet LEDs (UV) gives you a complete package that requires no additional add ons and is proven to produce the best results. Clocking in at 3.4 Umols/J Slim 650S produces mind blowing efficiency so you can get better yields with less power consumption.

The 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 extruded fin heatsink & cooling system so your light runs cooler, shines brighter and lasts longer. LED tech from the future with Samsung's latest horticulture series LEDs including the full spectrum white light diodes, Deep Reds, Royal Blue and Infrared Diodes. For growers who want the absolute newest and best LED grow light tech on the planet from Samsung the Slim 650S NextGen is for you.

Samsung LH351H v2 - 3.75 umols/J Deep Reds


  • Flower Coverage: 4' x 4' area (1.2m x 1.2m) Max: 5' x 5' area (1.5m x 1.5m)
  • Veg Coverage: 4' x 4' area (Max 7' x 7')

Hanging Height & Dimmer Settings

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


  • Weeks 1-3 @24' - 30' / 50% Power
  • Weeks 4-6 @18' - 24' / 75% Power
  • Weeks 7-8 @18' - 24' / 100% Power
  • Weeks 9-10 @12' - 18' / 100% Power

Pro Tips: Hang the light higher and let the plants grow up into the light.

Slim 650S Components:

LEDs: 3,000+ Total LEDs
3500k White LEDs:2,880

- Top Bin Samsung Horticulture LM301H LEDs  3500k Mixed - 3.1 Umols/J

Bloom Enhancers: Deep Red LEDs: 80 pcs
New! Samsung LH351H 660nm Deep RED LEDs 3.75 umols/j

Blue LEDs: 32 pcs
Samsung LH351H Royal Blue LEDs - 2.8 umols/j

  • Ultra Violet LEDs: 4 pcs (Dim Red LED)
  • LG UV LED - Proven increased rosin production and potency of oils
  • Infrared LEDs: 4 pcs (Dim Purple LED)
  • Top Bin Samsung LH351H Infrared LEDs (IR) 
  • Optics: 120 Degree Primary Lens on all LEDs (No Secondary Optics on fixture - Lenses sold separately)


  • Meanwell 0%-100% Dimmable Drivers, Black Vented Housing


  • Touch Screen Controller Sold Separately

3 Way Dimmability

You can control the 3 dimmers independently

  • Dimmer#1 (White LEDs Channel) - 495 watts
  • Dimmer#2 (RED Channel + UV & IR) - 115 watts
  • Dimmer#3 (Blue LEDs Channel) - 55 watts
  • All 3 Dimmers (White, RED & Blue)

Spectrum Control

3-Way Spectrum Control lets you 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 heat sink with fanless technology mean you get the coolest operating temperatures of any high power bar fixture on the market with no moving parts!


Full Spectrum White Light 3500k (Mixed White Light LEDs) (Full Power on 3 dimmers)
+ 660nm Deep RED + 450nm Royal Blue + ultraviolet + 730nm Far Red

Slim 650S NextGen PPFD

(tested with apogee mq-500 meter in 1.2m tent @658w)

6' Hanging Height PPFD: 1,554 (3.4 umols/J)

12' Hanging Height PPFD: 1,272

18' Hanging Height PPFD: 1,063

  • Total LEDs: 3,000
  • Model of Samsung LEDs: Samsung LH351H V2 Reds, LH351H Blue, LM301H White.
  • PPFD @6': 1,554
  • Ppf/w : 3.4 umols/J
  • Ppf: 1,970 umols
  • Grams Per Watt: up to 3
  • Yield: up to 3.9 lbs in 4x4 (1.2m) / up to 4.41 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 : 3,000
  • Actual Max Power Draw: 660 watts max
  • Amps: 5.5 Amps at 120v ( 2.8 Amps @ 240v)
  • Voltage : Internationally Used 110 volts - 277volts (240v cord sold seperately)
  • Warranty: 7 Year Warranty - 5 Years full warranty - 2 years limited warranty
  • 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)
  • Dimming: 3 Dimmer Knobs 0%-100%. 3-Way Spectrum Control
  • Spectrum Control: 3 Dimmer Knobs 0%-100%. 3-Way Spectrum Control
  • Fixture Dimensions: 42' x 42' x 4.5'
  • Fixture Weight: 43 lbs (Aluminum Fixture + Driver Case)
  • Hanger: Comes with 4 adjustable rope ratchet hangers.
  • Recommended for: Grow Tents, Grow Rooms, Greenhouses & Indoor Cultivations.
Veg Footprint up to 7' x 7'
Flower Footprint up to 5' x 5'
Power 650 watts
HID/HPS Equivalent 1300 watts
Dimensions 42' x 42' x 4.5'
Weight 43 lbs
Recommended Height 12' - 48'
Manufacturer's Warranty 10-year warranty

Order shipment preparation takes 3 days. Once shipped orders usually take 2 weeks to be delivered. These are estimations; delivery can be delayed for reasons beyond our control. You can always contact us to know the exact delivery time once you placed an order with us. Have a look at our shipping policy here.