TIG welder with AC/DC for TIG and electrodes welding With S-ALU 200, the digital aluminium welding unit by Stamos Power², TIG welding with direct current (DC) and alternating current (AC) is easier than ever. You can precisely set all the welding parameters and values on the clear control panel. The modern IGBT Inverter makes it easy to switch between TIG DC, TIG AC and E-welding modes, allowing you to weld with up to 200 A for most metals and in very different conditions. Powerful—TIG and MMA welding with up to 200 A Precise—ideal for aluminium with TIG AC and pulse function Flexible—extensive welding options thanks to TIG AC/DC, MMA AC/DC and pulse Modern—IGBT-Inverter with 2T/4T-function and high frequency ignition Clear—digital control panel with rotary control and LED display