I couldn't find a chicken coop heater that wasn't IR or didn't have a fan and with a thermostat that could be set as low as 40 degrees. Most that I saw were also over 500w, I don't need that much heat. One 60w light bulb will keep it plenty warm. The thing I've learned about bulbs is that they can and will burn out at any time. I've checked them one day and there burning and the next day they are burnt out. Reliability is why I got the simplest most basic heater I could find. Hopefully this heater will be reliable.