Quote Originally Posted by Mr. Clandestine
So, the area is a 2' x 2' enclosed closet? If so, a 1000w HPS is going to have to be super-ventilated in order to keep temperatures down. Will you be able to make some holes in the drywall/attic/door to allow for active ventilation?

Going with a 600w system would help keep the heat down, but even it would need to be sufficiently ventilated to keep from cooking everything in the closet like an oven.
Super Ventilated? More like Super Turbo! Damn!