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  1. J

    HPS lumens vs space?

    ok, I have 500w of hps lights :idea::idea::idea::idea:(2=150w & 2=100w) horizontally mounted in a white reflector @ 50,400 lumens total, inside of a 4'x4'x4' reflective interior grow box. What I want to know is, will this be plenty enough lighting for this space? I also have plenty of cfl's...
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