3 phase only, you will need 3 phase power or, a phase converter sold separately. Older Miller dial arc 250 ac/dc welder power source. You can stick well off this machine, you can also plug in a wire feeder sold separately, and mig weld with this machine. They don't make them like this anymore, heavy and built like a tank. Comes with rolling cart, I can help load onto a trailer or pickup with equipment. No leads included, just the machine. 900 or best offer.