3 In 1 Multi functions includes HF TIG/MMA and Lift Tig 40Amps min.welding current for thin material welding easily 1kg and 5kg Wire Spool Size for different welding job Friendly Interface makes easy operation and adjustment according to different wire Digital Display for easy view of both current and voltage adjustment Built-in Protection Circuit of over temperature and over voltage and over current for better reliability *90-270 Volts Input can be worked in Global market PFC Technology makes power factor more than 0.99 and energy saving.