... Mosfet technology 2, Small size, light weight 3,High duty cycle, High working effciency 4, ... steel, alloy steel, copper, ect metal, use DC function to weld aluminium, and aluminium alloy.Input ... 12mm Dimension:580x334x480MM Weight:32KGS Arc Starting:HF Pulse duty factor: 20-80% Attenuated time: ... interface: No welding thickness: (AC) 3mmOEM, ODM is also supplied. Inverter AC/DC TIG 200 welding machine