Features: Compact size, lightweight and portable, easy to take around with you. Digital welding machine, stable ignition, supporting the regulation of current from 20 to 250A. Knob button design, easy to adjust the current, quickly arcing and anti-stick. Built-in efficient heat radiation fan and 3 pcs strong aluminum radiator, with fine heat dispersing capability. Adopts quality full-copper amorphous transformer, provide strong welding ability. Quality 680UF 400V capacitor with high power storage capacity, faster ignition. Selected IGBT power tube, rectifying and wave-filtering, with stable output performance. Perfect for home decoration, such as install stainless steel stairs, stainless steel gate, stainless steel frame and etc.. Also can be used to welding stainless steel table, stainless steel chairs, guardrail, fence, billboard and etc..