3 in 1 CT312 Multi Functional TIG / MMA / Air Plasma Cutter Welder Welding Machine With Pressure Gauge 1.Input voltageV): AC110 -240V 10%, 50/60(sing phase);Efficiency(%): 80. 2.Advanced(IGBT) inverter techology. 3.Hot start, overload protection.steel and alloy steel, etc. CE Certificate. 4.Anti-stick, thermostatic control, fan cooled, carrying strap and handle. 5.Compact, portable, highly effective and low consumption, energy saving.