·Multi-process MIG Welder : This 4-in-1 welding machine combines Gas MIG, Gasless Flux Core welding, Lift TIG, and MMA welding with spool gun welding compatibility. Upgrade MIG gun with 150A that provides smooth wire feeding. Perfect for both professional fabrication and home DIY projects.·Synergic Control: Beginners will love the one-knob synergic technology of the mig welder that auto-sets optimal parameters - simply choose diameter of the welding wire(030"/.040") and start welding! The flux core welder function eliminates gas tanks for hassle-free outdoor repairs.·Support Spool Gun: The welder machine is compatible with spool gun welding (Need to buy extra spool gun), it will improves welding precision, if you can extend the length of the torch when you need to weld over long distances, it will reduces wire twisting, improves wire feed stability, portability for outdoor work.·Ultra-Responsive LED Display: The full-color LCD screen provides real-time displaying of current wire speed with intuitive touch controls. The innovative LED display ensures precise parameter control while the lightweight design enables easy workshop-to-jobsite portability.·110V/220V Dual-Voltage: The welding machine features dual voltage 110v and 220v, support on both 110V (household) and 220V (industrial) power sources, it included a external wire adapter. Ideal for home garages, construction sites, or workshops.