I am a big fan of the t5 lights beacuse of what they can do and what they cost to run. . . I had a 4ft/8 bulb, using alternating bulbs, and i was able to yeild 2 1/2 oz. from each of my 2 plants using base neuts, c02, and kool bloom so you should be kosher. If your closet is only 6ft tall then...