Horticulture Lighting Group 320 Watt XL V2 R-Spec Quantum Board DIY Kit

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Coverage Area

  • Veg Footprint:  5' x 5' (25 sq ft)
  • Flower Footprint: 2' x 4' (8 sq ft) or 2.5' x 5' (12.5 sq ft)


  • QB288 V2 R-Spec USA-made Quantum Boards with Samsung LM301B + 660nm Top-Bin Diodes
  • 1x Slate 2 Triple Predrilled 891mm Heatsink
  • Meanwell HLG-320H LED Driver. 93.5% Driver Efficiency. Boards should be wired in series with the driver for maximum output
  • 6FT Nema 5-15P 16/3 SJTW NA Power Cord or equivalent for standard
  • 120VAC with cable connector
  • 2ft solid core Wire, 2x Wago Connectors for DC wiring
  • Hanger Clips

Spectrum Information

  • 3500K + 660nm Deep Red


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


  • Dimmable: 100-340 Watts
  • Length: 891mm
  • Width: 205mm

Helpful Assembling Information

  • No Thermal Interface Material is required between the LED board and the heatsink
  • Remove black plug on the driver and use Philips head screwdriver for dimming

NOTE: Boards should be wired in series with the driver for maximum output


    PPFD Testing