Small in size, light weight, is an ideal portable dual-function weld machine. High frequency arc-starting, easy operation, strong weld penetrating power. MMA welding with arc force function, arc-starting easily, convenient and practical. Above TIG250 with LED current display clear and intuitively. Easy arc-starting, stable welding current, fast dynamic response, noise-free welding, little spatter, no magnetic bias, perfect welding shaping. Adapt to a variety welding rods, weld many kinds of material, included carbon steel, stainless steel, alloy steel, copper titanium.