... Efficiency(%):85 1.ApplicationIt uses advanced invert technology and powerful switch design(IGBT).With 2T & 4T ... in over-voltage, under-voltage, over-current and over-loaded.It has high efficiency, small unload ... stainless steel, carbon steel, alloy steel, brass and titanium and so on.Dual functions welder, TIG for ... /6.040~500TIG-500 TIG Series Inverter DC TIG/MMA Welding Machine (IGBT Module)