mr.man
Well-Known Member
ok i have 3 (13) watt CFL lightbulbs (getting ready to upgrade to 20's or 42's if i have a 20 watt how far away should i keep the light? my 13 watts are 9 inches and 11 inches away. (i think they are too far away but my plants still seem to like it i dont want them to burn) how fat should i keep a 42 watt bulb away? can somone list the watts and how far away for each bulb