I have a bunch of CFL's and a 400 metal halide lamp but only a very small space (big enough for 3-4 mature plants at most). I am also wondering about the energy consumption of the MH lamp, I'm not really looking for a spike in the electric bill. So here are my 2 questions. Will a MH lamp be too hot for a space in one of those behind the stairs closets? And, Will a MH lamp use much more energy then the CFL's?
jazzbassmasta Reviewed by jazzbassmasta on . College Newbie... First Grow. I have a bunch of CFL's and a 400 metal halide lamp but only a very small space (big enough for 3-4 mature plants at most). I am also wondering about the energy consumption of the MH lamp, I'm not really looking for a spike in the electric bill. So here are my 2 questions. Will a MH lamp be too hot for a space in one of those behind the stairs closets? And, Will a MH lamp use much more energy then the CFL's? Rating: 5