Horticulture Lighting Group HLG-600H Quantum Board V2 R-Spec DIY Kit - 620 Watt

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Top Features

  • 1000W+ HID replacement
  • 620W power draw
  • Lamp Efficacy: 2.5 µmol/J
  • 4'x4' to 5'x5' flowering footprint; 7'x7' veg footprint 
  • Light output: 1525 PPF
  • 3500K + 660nm Deep Red full-spectrum white light for full-cycle or flowering applications
  • Reliable passively-cooled design
  • No thermal interface is required between the LED board and the heatsink
  • No soldering required
  • 1-year manufacturer's warranty


    Kit Includes

    • 4 x QB288 V2 R-Spec USA-made Quantum Board with Samsung LM301B + 660nm Deep Red Top-Bin Diodes
    • 1 x Slate 5 Quad Predrilled 740mm Heat Sink
    • 1 x Inventronics EUD-600 driver (better surge protection, AUX out for fan or controller)
      • Dimmable from 10%-100% with dimmer (0-10v) / potentiometer (50k Ohm). Dimmer/potentiometer not included (we do not stock them) but can be purchased on Amazon.
    • 1 x 8FT NEMA 5-15P Power Cord or equivalent for standard 120VAC 
      • The driver is rated for up to 277v. If you need a 240v plug, we suggest purchasing a 120v to 240v plug adapter on Amazon.
    • 1 x AC Cable Joiner - IP68 Waterproof for Power Cord to Driver's AC Connection
    • 4' Solid Core Wire
    • 4 Wago Connectors for DC wiring
    • Hanger Clips



    • Dimensions: 29" x 15.5" x 3.5"
    • Amps: 5.16A @ 120v; 2.58@ 240v
    • Wiring: In series with Inventronics EUD-600 driver
    • Tools required: screwdriver and wire strippers (or scissors).
    • Comes with a 120v US plug (you can use the appropriate plug adapter for your country if you require something different than a US plug).
    • International shipping available but HLG is not able to offer a warranty on this unit out of the USA and Canada since the driver and heatsink are too heavy to ship.


    How to hook up a potentiometer to the driver

    When hooking up a potentiometer, use the Dim + and Dim - wires on the driver (grey and purple) and solder them to the 1 and 2 or 2 and 3 prongs on the potentiometer. It doesn't matter which prongs (1,2 or 2,3).


    HLG 550 V2 vs HLG-600H

    We have received many questions about the difference between the HLG 600H and the HLG 550 V2. The main differences are listed below.


    • ~620W power draw
    • Covers up to a 5'x5' area (~1000W DE HID replacement)
    • 1500 umol/s light output (16% more than the HLG 550 V2)
    • Comes disassembled and requires assembly before use (about 25 minutes to put together). Screwdriver and wire snippers (or scissors) are required to assemble and are not included.
    • 1-year warranty
    • Not ETL or UL listed for commercial grows

    HLG 550 V2 R-Spec

    • 480W power draw
    • Covers a 4x4 area (1000W SE HID replacement)
    • 1257 umol/s light output (16% less light than the HLG 600H)
    • Preassembled
    • 3-year warranty
    • ETL listed to commercial grows