Horticulture Lighting Group 320 Watt XL Quantum Board LED Kit V2

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Black Anodized heatsink standard.

Clear Anodized heatsink available upon request

3 Ultra High Efficiency QB-288 V2 (Version 2) Quantum Boards.

NEW - Dimmer Knob Option for Easy Dimming!

Equivalent to a 600 Watt HPS, two of these will replace a double ended 1000 Watt HID grow light, perfect for a 5' x 5' grow space. 

The HLG 320 watt XL kit with the new Version 2 Quantum Boards, a total of 864 Highest Bin Samsung LM301B LED's, is the most efficient grow light kit on the market. Enjoy lower energy cost, less heat and more output, a 7% efficiency gain over the previous model!

 - "All the parts needed to build your own high performance LED grow light is included in the kit. And if you want a kit preassembled, have us build and test it for you. Either way, you'll be ready to grow, even on a tight budget."

General Spectrum Info:

3000k - Great for Flowering and General Use.
4000k - Great for Vegetative Phase or as a Primary Veggie Light.


  • Driver Adjustable from 100-340 Watts
  • Veg Footprint: 3’ x 5’
  • Flower Footprint: 2.5’ x 5'
  • 2 Kits are Perfect for Flowering a 5' x 5' Grow Space 
  • Dimensions: 35" x 8" x 3"
  • 1 Year Warranty


  • 3 QB-288 V2 Quantum Boards with Samsung 301B Highest Bin Diodes
  • 1 Slate 2 Triple Predrilled 600mm Heatsink
  • 1 Mean Well HLG-320H-C1750A LED Driver - Boards Should Be Wired in Series for Maximum Output
  • 1 Mean Well HLG-320H-54B (with Dimmer Knob) LED Driver - Boards Should Be Wired in Parallel  for Maximum Output
  • 8FT Nema 5-15P 16/3 SJTW NA Power Cord or Equivalent for Standard 120VAC
  • 1 AC Cable Joiner - IP68 (Water Proof) for Power Cord to Driver Connection
  • 3' Solid Core Wire
  • 2 Wago Connectors for DC Wiring
  • 2 Hanger Clips


  • QB-288 V2 - Lamp Efficacy: 2.53 µmol/J, 174Lm/W
  • QB-288 V2 - Board Level Efficacy: 2.7 µmol/J, 185Lm/W


No thermal interface material is required between the LED board and the heat sink.

Remove the black plug on top of driver and use a small Philips head screwdriver to adjust power.

LED Driver color wires


Molex Lite Trap

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