HF start TIG welder. 2 Functions in 1 machine, is suitable for HF TIG/Stick/ARC welder. Can Handle E7018 basic electrode. Welding up to 5/32 inch plate. Dual voltage input design:Welding machine can support 110(120)V / 220(230)V. Intelligent protection includes over-voltage, over-current, over-heat protection.