I know that almost any light will fit in there with the right exhaust, but I'm not wanting to dish out 250 or more on a good fan. I'm kinda hoping to let most the air flow be controlled by an oscillating fan, with a small 80 cfm fan hooked up to the light or blowing the air out of the closet if i decide to make it a closed in space. I want to be as simple and cheap as I can be while staying effective.