The Hobart Welders 500491R is a "B" Stock Factory Reconditioned Champion 4500 Generator and AC Stick Welder. The lightweight and compact, Hobart’s Champion 4500 welder/generator provides the power also. The unit is an excellent source of generator power, providing up to 4500 surge watts of AC power for emergency backup, as well as hand tools, grinders, lights and battery chargers. As an AC welder, the Champion 4500 delivers up to 140 A of welding power, making it an ideal choice for maintenance and repair projects.