It seems to be working ok for us. We can’t manually control the temp on it, but it has never shut off and is just producing a fairly comfortable amount of heat for the chicks when they stand/lay on it. The box claims to be good for both chicks and outdoor weather, but it’s mainly marketed as a coop heater, so that’s probably its best use.
Not that I’d recommend the product to anyone, but we’re getting along ok on it now. We had a huge scare with our heat lamp being unsecured in the brooder with our other pullets and don’t think it’s worth the risk putting it back in. Thank you all for looking into it.
Right, but thermostatically controlled, as it is advertised, means that while the mat is "on" as in plugged in and the thermostat is operating, the heat will turn on and off intermittently based on temperature. Somewhere it should specify the temperature range that the built in thermostat is set at. This may or may not provide an adequate temperature for brooding as it does not seem that this is the intended use of the product. If you are going to continue to use it for brooding I would invest in a small thermometer so that you can monitor the temperature.