- MMA inverter welding machine, model Edon MMA-300S It operates with a capacity of 300 amps and a voltage of 220 volts, and features MOSFET technology to maintain arc stability. Suitable for welding iron, aluminum, and stainless steel, and works on regular household electricity. - New ESAB Rogue ES 200i Pro welding machine It operates with an electric arc (MMA) and a gas arc (TIG) with a capacity of up to 200 amps.