I really , really, really hate to sound stupid but I know NOTHING about wiring. I was hoping a home made incubator would be something I could do myself. I know how to do the light kit but that would be as far as what little ability goes. I just thought I could put the light in the cooler with the thermostat and that would be it till I reread where I would need the fan to keep things cool. Wouldn't holes in the side of the cooler work too? Put holes in it and if the temp was to cold, block some of the holes till I could get it regulated.
Maybe I had better rethink ever hatching eggs since it sounds WAY over my head. I really just wanted something small to hatch a few eggs at a time. Sorry to take up your time.