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HLG 300L RSpec Quantum Board LED Grow Light (Dimmable) 250 Watt Draw

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Original price $750.00 - Original price $750.00
Original price
$750.00 - $750.00
Current price $750.00


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When you spend $199*

*Excludes bulky items: soil, tents etc

The HLG 300L Rspec® Commercial Indoor Horticulture LED grow light is designed to replace a single-ended 600watt HID. The HLG 300L R Spec uses 2 of our custom designed full-spectrum high efficiency white light Quantum Boards® with Samsung LM301H and Deep Red LED 660nm. For more power and intensity / Penetration try the Diablo version HLG 350 R.

 Note the HLG 260 Rspec is near identical to this unit but is DIY and only comes with 1 year warranty - 

Download the HLG 300L Rspec Manual here 


  • New improved longer design for more even Light coverage
  • High efficiency white light quantum boards
  • Full-spectrum White and 660nm Red
  • Reliable passive-cooled design
  • Better canopy light penetration with diffused light
  • Dimmable power supply included
  • Auto sensing power supply works on both 120VAC and 240VAC
  • 3-year warranty
  • Comes with Australian Plug and ready to go, no assembly needed.



Power 30-250 Watts
Voltage Range 90-277 VAC
Flowering Footprint 2.5' x 2.5' or 3' x 3'  / 76.2 x 76.2 or 91.4 x 91.4 CM
Veg Footprint 4'X4'
System PPF Efficacy 2.7 μmol/joule
Total output 679 PPF
Dimensions 26" x 10" x 2.75" / 66 x 25.4 x 7 CM
Recommended Mounting Height 18-24 inches  /  45 - 61  CM




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