I am trying to regulate the temperature in my ice chest incubator and am almost at wits end. I think by now, I would have been further ahead buying a incubator. I tried placing the thermostat in a metal container higher up, away from the bulb, close to the bulb, directly above the bulb, and pretty soon I might put it inside the bulb or better yet, in the trash. I know a lot of people must use one or have tried one, what has your experience been? Why not just use a line voltage thermostat?$30 Please,please help me out here.