pencap
Well-Known Member
I aggree......when your plants start taking off....you may not be there to raise the lights, and the tops will burn...at 1 and a half inches, you got a couple hours to re-adjust yer lights...good luckare those t5's they are under? if you have a multi bulb fixture. like lets say a 4 bulb. they will actually get more lumens a little bit further away because they will recieve light from more bulbs at once. I veg under t-5's and noticed that about 1.5" away was working better than .5" an inch away very quickly because when they were very close they were only recieving light from 1 to 2 of the bulbs.