>>1528288I think I have this incubator whipped. I tried using a thermostat, but it was junk and swung wildly by 10 degrees. I didn't want cooked eggs. I went back to a bulb only, but the 40watt I was using was too hot. I decided to increase the insulation, but also lower the bulb wattage. I'm now using the little PC fan and a 9 watt LED bulb. By sliding the top cover insulation panel back and forth I can adjust the temperature more accurately than the store bought incubator from the 70s. I'll see how it goes tonight. If it holds the temps well enough without me babying it, I'll start batch 3 tomorrow.