The Firepower MST 220i Multi-Process Welding System offers 115 and 208/230V, and provides MIG, Stick and TIG welding outputs for use anywhere, according to the company. This tool offers 210 amps maximum output to meet large job demands. The MST 220i allows users to choose the best process for the specific application. The MIG process provides maximum productivity in the shop, while the Stick process works outdoors, and TIG process is for welding applications that require more precise control. The MST 220i is also spool-gun capable for aluminum MIG welding.