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WormHole · #2 (**permalink**) 06-02-2002, 04:44 PM

MH is Metal Halide which is good for growing. MV is Mercury Vapor which is bad for growning. Too much heat and not the right light spectrum.

#2 (permalink) 06-02-2002, 04:44 PM
WormHole Registered User Join Date: May 2002 Posts: 22	MH is Metal Halide which is good for growing. MV is Mercury Vapor which is bad for growning. Too much heat and not the right light spectrum. __________________ Growing old is only going back to where you came from. ~Kansas~ The Growers Resource Guide