ok, I went and got a heating pad with no shutoff for the cool side of the tank. I have a exoterra uth on the hot side. Temps read: 93 inside the hot hide and 83 on the cool side on the surface. Covered the screen top with saran wrap minus 1 inch on either side. The humidity instantly went up and is holding at 58-62%. No more lights...I think that I like this way better, and there will be no nightime drop since there is a thermostat controlling the room temperature. Do you guys like it? Thanks for all the great info, you all have been a super help to a new BP owner.