I have a closetspace of 2' deep x 7' wide x 8' high.. What type of lighting would I want to use (Other than a mass amount of CFLS...) to where I would need minimum air exchange so long as the circulation within keeps the temp. down?

A 4' 8 bulb t-5 would light it up like christmas, less heat issues, 440watts, 44000 lumens right on top of the plants. Use the other side for clone/mother/ storage. VV

I had considered using the T5 4-Foot 8 Bulb setup, although the width of the reflector is about 3 inches too wide to fit into the closet properly..How hot do the 250 watt MH and HPS units get?