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Horticultural Lighting Group HLG 550 LED Review, Unboxing, PAR Testing, and Features

on June 15, 2017

Horticultural Lighting Group HLG 550 LED Review, Unboxing, PAR Testing, and Features

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2 comments
by Drew on February 06, 2018

I would like to see some evidence of equal yields versus 1000watt HPS

by CRAIG J CIRRINCIONE on June 15, 2017

i would like to see one work.

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