are y'all having this problem with the ballast nearby? those suckers get hot. I have a cabinet that is smaller than the ones listed here, and my temps never go higher than 85, even when I cover the top where the light is with a towel so light doesn't leak out the window. my ballast doesn't effect the temperature because it doesn't share air with the grow area. I have a segregated area that I was going to use for dark teatments so I lined it with black foam. but it currently houses the ballast and temps in there are around 90, but the grow shelf stays around 80. not bad for only being separated by a wall of plastic