The WeldproTIGACDC250GD welder is an inverter based TIG welding machine that utilizes the most advanced inverter technology. IGBT circuits along with PWM technology, along with the greatly reduced size and weight, enable this welder to not only be more efficient by 30%, but also as a result of the electronic circuitry, enables this AC/DC TIG welding machine to afford the user far more and better range of settings for each specific weld. It is capable of both HF TIG and Stick welding.