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HLG 550 V2 R-SPEC (updated to HLG 600), Samsung Quantum boards from Horticulture Lighting Group

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This light has been replaced by the HLG 600 available now.

Full cycle grow light from HLG - Veg to Bloom / Flower  with LM301H Samsung diodes

You loved the HLG 550 - Now imagine that and add 660 nm Red and you have quite possibly the best LED grow light ever made by HLG.

Better Veg growth and better flower = Better yield 

These lamps are fully made and imported from USA - Avoid the copies found online elsewhere.

HLG550 V2 Rspec Commercial Indoor Horticulture LED grow light is designed to replace a single-ended 1000watt HID. Each HLG-550 V2 R-Spec uses 4 of the HLG 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. Tool for dimming incl. 

HLG-550 V2 Independent Lab Test Report 1

Datasheet of Samsung LM301H Datasheet used in R spec Quantum Board ®


  • High efficiency white light quantum boards
  • Full-spectrum White 3500K 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 (Ships with Australian Plug attached).
  • 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.

At 2.6 umol/j, the HLG 550 V2 R-Spec is still the most efficient single-ended 1000-watt HID replacement on the market! You can not find better.



Power 240-480 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 Efficiency 168 Lm/W
System PPF Efficacy 2.6 μmol/joule
Total output 1257 PPF
Dimensions 26"X20"x3"
Recommended Mounting Height 24-32 inches above canopy


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


HLG Red Spectrum

ETL Listed

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


HLG 550 Comparison chartHLG 550 comparison

Shipping From Australia to YOU ! No duty Or GST to be added if within Australia !

NEED MORE THAN 1 Light? Contact us for Special Volume price 

Free Shipping To New Zealand on this product - Just pay NZ Duty and Taxes upon arrival. Contact us direct on our site for more detail.