failure after 2 months. I plugged it into the back of my work truck to hook up a very small 200w heater to keep wet parts from freezing. The combination of inverter and heater did the job perfectly. Then one day, about an hour after my next check, I open the door and smell the distinct smell of fried electronics and a flashing red light. It will still power my LED lights, but anything with more draw than that is going crazy. I can't trust it for security reasons, so it's useless to me.