... 200 AMPs at 60% duty cyclethickness of workpiece for TIG welding:5mmDC(weld all metal materials except aluminum) ... frequency arc start,high speed MOSFET control Technology,200Amps DC TIG welding current Typical Applications:hobby, industrial automation, oil / ... repair, heating, ventilation and air conditioning, Light manufacturing Accessories:TIG torch+4m torch cable+earth clamp+3m earth wire+2 ...