Harbor freight used to sell these generators. they are still available on eBay for about $150 new. it's a two-stroke generator, which means you need to mix the fuel and oil, and then drain it before you store it. it works fine. It's really light and works great for power tools or camping or running a small refrigerator. I've used it for less than a half an hour, basically just starting it every couple of years to make sure that it runs. It has a single 120 volt outlet.