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07-18-2013, 02:23 PM#4
Senior Member
flowering lighting what are yall using
I like Metal Halide for flowering. I quit using HPS several years ago.
Dual 400 CMH (ceramic metal halide bulbs) 4000k.
Metal Halide bulbs are available in Kelvin temps going from 3000k to over 7000K
I like 6000k-7000K for vegging - 4000k for flowering.
HPS kelvin temps are pretty much just 2100k to 2700k
(I'm in HPS rehab:jointsmile
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