HLG-550 V2 Rspec CSA, ETL, UL certified

Powered by Samsung LM301H LED

Our HLG 550 V2 R Spec Commercial Indoor Horticulture LED grow light is designed to replace a single-ended 1000watt HID. Each HLG 550 V2 uses 4 of our custom designed full spectrum high efficiency white light quantum boards with Samsung LM301H and Deep Red LED 660nm .  This unit is dimmable, with wattage output from 200 to 480 watts.


HLG 550 V2 Independent Lab Reports

Report  for Output/Efficiency

Report for PPFD 24 inches 5' x 5'

Report for PPFD 18 inches 5' x 5'


Watts to BTU Calculator, Cooling Requirement Calculator

Check HLG 550 B Spec for Veg spectrum option


  • 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 Inventronics power supply works on both 120VAC and 240VAC and 277VAC
  • 3 Year warranty
  • Higher intensity and more even coverage in a grow tent, reflective area, or by crossing over using multiple HLG-550 V2 lamps.



Power 40-500 Watts
Voltage Range 90-277 VAC
LED Samsung LM301H & Deep Red
Flowering Footprint 4.5' x 4.5' or 4' x 5' at 24"
Veg Footprint 6' x 6' at 36”
System PPF Efficacy 2.65 μmol/joule
Total output 1293 PPF
Dimensions 29" x 20" x 4"
Recommended Mounting Height 24-32 inches above canopy


ETL Listed

Conforms to UL Std 1598
Certified to CSA Std C22.2#250.0


Please contact for other spectrum options, 240V or UK, EU Power cords.

Dimming Video



Datasheet of Samsung LM301H that is used on the R Spec Quantum Board ®


Expect higher intensity and more even coverage in a grow tent, reflective area or a cross over with multiple lamps.

Customer Reviews

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Collections: ALL, LED Lamps

Category: Lamps, QB

Type: Led Light

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