TIG&MMA MULTI-FUNCTIONWelding thickness 0.5MM-3MM. Tig arc welder 220v-240v 200amp 2 in 1 welding machine stick mma arc welding dc in 0.1 second, it is suitable for spot welding and short welding. ADVANCED INVERTER TECHNOLOGYPWM (Pulse Width Modulation) using IGBT technology, high efficiency, fast welding speed, easy to start arc.