The ET 301i AC/DC is a powerful and versatile power supply designed for precise TIG and Stick welding of various materials. Its advanced digital control technology ensures high-quality output. With its expanded input voltage capabilities, this unit offers maximum flexibility. The true square wave output, along with balance and cleaning features, provides exceptional welding performance and extends the life of tungsten on aluminum and magnesium alloys, eliminating the need for continuous high frequency. This product comes with a range of standard features including high frequency start, Liftarc TIG start, automatic downslope, pulse, repeat (latch) function, memory function, and automatic gas management. It has automatic input voltage selection, allowing it to operate on 208-230/460V single or three phase power. Despite its power, this unit is lightweight and portable, weighing only 35.9 lb. (16.3 kg). Additionally, it offers Tiptronic with 100 memory functions and features a robust aluminum metal case.