9-IN-1 WELDER：ARCCAPTAIN MIG205MP MIG welder has 9 welding modes: Gas MIG/Gasless MIG/Cut/DC HF TIG/DC Lift TIG/MMA Stick/Clean/Spot Welding/Spool Gun Aluminum Welding (Need to buy extra spool gun). The app also includes an FAQs section, providing instant access to troubleshooting guides and solutions from our knowledge base.