3 IN 1 MIG Welder Inverter 140AMP Gasless 110V 220V ARC TIG MIG Welding Machine Posted on November 26, 2023 by admin Inverter mig welder 110V/220V, updated verion of the old mig120, new machine carries MIG/ARC/TIG function in one. Inverter mig welder 110V/220V, machine carries MIG/ARC/TIG function in one. MIG function: no gas iron welding.