I had two of these shining on some mint clones and a couple bagseed seedlings and one of them suddenly died. I looked at the base was overheated and melting causing the spiral tubes to deform. it broke at the top as i was taking it out and i checked the other and it was starting to melt. i'm going to try to get my money back for these. Replaced them with some GE 26ws I had lying around and have a fan blowing on them, hopefully these will be better.
whats the size of the reflector your using? Persoanlly I wouldn't even use the alaminum reflector they come with.