its closed at night and no light gets in, no fan on. During the day, I slide the front of the closet over and blow the fan on my set up from outside the closet. I understand there is no light reflecting off the front and one side, but how bad is that??
I have the 175watt metal halide, 3 aerogrow CFLs and another CFL fixture. Temps with it closed are in the mid to high 80's