here's a lame room for you. three 4 foot fixtures with 2 40w cool whites in each light! in an unheated room. the dehumidifers exhaust (75 degrees!) heats the room while drying it out at the same time. milk jugs for planters (washed and bleached out) Total cost (I already had the lights as fixtures for my basement) $50.00 US! That's gorilla for you...oh, and I'm into my 10th day of flowering 16 plants.