Comparing HLG 550 V2 Rspec and HLG 550 V2

by Horticulture Lighting Group 5 Comments


  • Proven Design with over 3000 units sold
  • Highest efficiency per watt per dollar gives the most light for your money and low power consumption
  • Reliable Passive Cooled Design with minimum point of Failures
  • Full Spectrum for optimal plant growth

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


Lab reports

HLG 550 V2 R spec Report

HLG 550 V2 Report


HLG 550 V2 R spec offers more light output with a red enhanced spectrum.

More output and better spectrum with similar power consumption gives you unbeatable performance and price.

HLG 550 V2 R spec is ideal for flowering and full cycle. HLG 550 V2 4000K is ideal for Veg cycles.

 550 V2 Rspec vs V2

Comparison at 240VAC between 550V2 3000K and 550V2 R spec


Spectrum Comparison

R spec Full Spectrum ( 3500K White + 660nm )


V2 Full Spectrum ( 3000K White )


V2 Full Spectrum ( 4000K White for veg)


LED Comparison

HLG 550 V2 uses 1152 pcs of Samsung LM301B LED. Available in 3000K and 4000K

HLG 550 V2 uses 1088 pcs of Samsung LM301B LED in 3500K and 64 Osram SSL Deep Red 660nm


Horticulture Lighting Group
Horticulture Lighting Group


5 Responses


September 10, 2019

I have a temp meter at the top of my HLG 550 V2 Rspec and its reaching 90 degrees in a 4×4 tent on full power is this normal or did I wire things wrong?

Ron Smith
Ron Smith

August 08, 2019

What the difference in 550 & 288…also what does 550 mean???

Andy hunter
Andy hunter

July 11, 2019

My countrys electricity supply is 220 v 50 hz can i still use your hlg 550 system

Mike Garcia
Mike Garcia

June 09, 2019

Is the Rspec available still? Please send link.

Zachary Rahuba
Zachary Rahuba

June 04, 2019

What cri you guys use for the lm301b?

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