Idk if u've seen em or maybe use em already, but as spike was sayin, hps's will get way too hotto be in there, but anyway, at home depot they got 300watt 2700k cfl's, they could be more managable heatwise and should put out quite a bit of lightfor a cfl. U'll have to check the lumen output on em or maybe someone else might know on here. I was thinkin about settin up a few around my closet for some side-lighting to accompany my hps.