power Voltage: 220V/ 50-60 HZ Max input power: 6.3Kva Rated output voltage: 20V No load voltage: 54V Current Range: 20-250A Duty Cycle: 60% welding thickness: 1-9mm usable electrode: 1.6-5mm Insulation class: F Protection class: IP21S Accessories: 1- Tig Torch 2- 1.5m cable with electrode holder 3- 1.5m cable with earth clamp 4- mask and brush