4 functions in 1 machine：Capable of DC TIG/Spot TIG/Pulse TIG/Stick welding, including spot TIG welding ideal for reinforcement welds. Remote Control：Reserved 5 pin foot pedal interface, can be connected with foot pedal to turn ON/OFF and adjust the current. Up to 200A,equipped with hot start and arc force function for stick welding. Suitable for stainless steel, alloy steel, iron or other non-ferrous metal welding. Certificated by ETL：Intelligent protection includes over-voltage, over-current, over-heat protection.