i use a 70 HPS for my clones and its about 6ins away but ive got a sealed reflector with a glassfront which holds a lot of heat away from the plant's
marijuanamat Reviewed by marijuanamat on . 100w HPS? If i was to be using a 100w HPS with flourescents as well, how far should the HPS be away from the plant to stop it cooking her? Also how many plants do you think 70watts, of flourescent light, would support. Cheers Rating: 5