poopypantspaul
Active Member
found a 175watt mercury vapor on sale for 30bucks. only have cfls right now and want more light. altho mercury is more of a blue spectrum would it work for flowering? in a 5x5 grow box.
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GrowKindNugs
Well-Known Member
i'm not 100% sure, but i think it would work! alot of people us metal halide the entire grow, and it's more on the blue spectrum.