Century, 90A, FC90, Flux Core, Stick Welder, Lightweight & Portable, Ideal For Maintenance & Mobile Welders, 30 PercentDuty Cycle At 80 Amp, Infinite Welding Volt To Allow Fine Tuning Of Weld Characteristics, Inverter Power Source Is MoreEfficient To Operate, Provides Smoother Weld Characteristics Than Traditional Welders, 120V Input Power For Convenience, Automatically Cools For Safety, 30 To 90 A Range.