hi guys thanks for your replys....iv now got them under my little house cfl lamp ...and they have now spouted out of soil over night with this on....but wen i stick the 600 to see the temps its 85/90 ...some people say 85 is ok but 80 is alot better..i got an exuast out take but no intake...just a house fan sat in the tent blowing ner plants ....is this not good ......and i got no cash for any other fan light ect ..im on my last legs