550w HLG XL Quantum board kit

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  • Regular price £599.99
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The Quantum board 288 V2 are made by Horticulture Lighting Group in the USA. Each board has 288 highest flux and lowest voltage bin LM301B led for an unbeatable performance.

This is an XL version, designed for a 1.2m x 1.2m area. 

Refurbished items sold out. Custom order only!


  • 4x 288 V2 Quantum boards (3000k)
  • 4x Slate single heatsinks.
  • 2x HLG-240H Driver.
  • 2x 2m uk power lead.
  • 2x IP67 Cable connector.
  • Solid core wire/wagos
  • All hardware is supplied. 


  • Lm301b top bin diode.
  • Full spectrum lighting suitable from seed to harvest.
  • 800mm long lights for even coverage.
  • Genuine HLG Samsung V2 boards.
  • Meanwell HLG driver.
  • Dimmable 50-100%
  • High system efficiency 
  • Uk stock. 
  • Size 800mm x 200mm (2 units)

Click here for a copy of the user manual

We do not provide ratchet hangers!!!


Total PPF output at 550w

System efficiency at 550w  2.39μmol/j
Dimmable 240-550Watts
Veg Footprint 1.5m x 1.5m
Flower Footprint  1.2m x 1.2m