Also me, cooler basement. Added a 1200w oil radiator and seeing better growth with the higher temps. I think I need to veg with a hps or something to add heat to the room. Definitely affecting my “energy” savings. Otherwise happy with my lights but the heat issue was not one I thought of before spending the big bucks on lights.This is me...and that's with running close to 2400 watts from the wall on just lights alone. Without a heater running, I cant hit 70F in my room.