Description: 1.By means of advanced inverter technology and use V-MOSFET in design. 2.PWM control technology makes current constant and precise in current control 3.High efficiency, low no-load consumption and economy of power. 4.With the perfect protect functions in over voltage,under voltage, over heat, over current, over load, be safe and reliable. 5.Small in size and portable in carry, especially suitable for movable operation and high altitude situation. 6. Elegant shape of seam through good arc ignition,stable arc and ltter splash. 7.Be able to use all kind of welding rod, such as acid and basic rod. 8.Used for welding stainless steel, carbon steel, copper and other non-ferrous metals. 9.Suitable for vehicle manufacturing, spipbuilding,chemical, boiler, food, medical, kitchen, environment protection and decoration industry and etc.