The MTA 201 AC/DC is a portable IGBT digital inverter multi-process welder 4 in 1 machine. Digital waveform technology allows multiple welding processes with optimized performance. Utilizing a 32-bit Cortex M4 chip that can perform 500,000 operations per second for precise welding control. Low splash function, precise heat input and weld formation. Expert mode: Deep parameter settings with 99 welding process channels. Full function TIG welding, including pulse setting, gas pre-flow, post flow, slope up, slow-down, 2T/4T etc. AC ARCARE technology suitable for thing metal welding and spot welding. Optimized welding performance for carbon steel, stainless, Cusi, Aluminum. Synergic Mig Welding IGBT Digital Inverter 4 in 1 Machine AC TIG/DC TIG/MIG/MMA PFC Technology 7 inch LCD screen Arc force, hot start, anti-sticking function Full Tig function welding 2T/4T TECHNICAL DATA: Input Power [VI 230 Rated Input Current I 1 eff' [Al 14.7 Max Input Current [Al 27 Rated Input Capacity [KVA] 9.2 Open Circuit Voltage [VI 70 Welding Current Range [Al MIG 30-230 / MMA 10-175 TIG 10-210 Duty Cycle [Al 60%@ 200 Weight [KG] 19.5