The ET 301i AC/DC is a high output, full digital control, AC/DC, Stick/Liftarc TIG/HF TIG, inverter power supply with expanded input voltage capabilities for maximum flexibility. This unit is specially designed for precision TIG and Stick welding of all weldable materials. Superior, true square wave output combines with balance and cleaning features to deliver unbeatable welding performance with extended tungsten life on aluminum and magnesium alloys without the need for continuous high frequency. Features Standard features include: high frequency start, Liftarc TIG start, automatic downslope, pulse, repeat (latch) function, memory function and automatic gas management Automatic input voltage selection – operates on 208-230/460V single or three phase Lightweight and portable at 35.9 lbs Tiptronic - 100 memory functions Robust aluminum metal case Industries Automotive Ship/Barge Building General Manufacturing Industrial and General Fabrication Pipe Construction