Ramsond CT 520DY 3-in-1 Multifunction Digital Inverter Plasma Cutter + TIG Welder + ARC (MMA) Welder, Dual Voltage 110/220V Dual Frequency 50/60Hz 50 Amp Digital Inverter Air Plasma Cutter 200 Amp Digital Inverter DC (Direct Current) TIG Welder 200 Amp Digital Inverter DC ARC (MMA) Welder Automatic Dual Voltage/Dual Frequency (110v220v 50/60 Hz) Integrated Digital Display of Current (Amps) & Pressure Gauge