ok after careful consideration i know i what i want to accomplish. first off i'm going to go with the 600w hps cuz i'd rather be safe than sorry, and i'd rather be happy then just get by. I've been fucked alot of times in life, n i deff don't want to screw over my best and only friend thats always been there lol mj... since its such a small space i really don't want my plants to overheat, n i want to keep the veg area right above, so i'm going to keep my closet open during the light period...(if i make a door with the polymer right behind the closet door with the closet door open will heat get out or no?) also with closet door open how can i eliminate odor? don't want the whole house to stink up. will i have to do place carbon filters in closet, n in my room? or just room? I'll probably cover the windows with a trash bag or something (to hide grow light) if i can't use the polymer if it holds heat in the closet. does this sound like it'll work?