- Fan-cooled AC/DC power supply for pulse TIG and MMA welding applications. - Suitable for welding aluminium, magnesium, stainless steel, steel, copper, nickel and titanium. - TIG cycle includes post gas and current down-slope regulation. - Features regulated high frequency (HF) push-button arc that prevents having to touch the workpiece to start, keeping the tip in good condition for longer. - Includes connector for foot pedal when more control is required. Foot pedal available as an optional accessory (Model No. TIG200HFACDCF).