Using the most advanced IGBT or MOSFET inverter technology, simple circuit, small size, light weight, high efficiency and energy saving. Super-compensation of the power gird capacity, anti-supply voltage fluctuations, the stability of welding current, reliable performance. No-load loss, with the traditional machine than can be saving 50%.Inverter frequency of 30-100KHz, the dynamic response of high-speed, easy arc ignition, arc stability, high strength. T- reduces noise and dust inside the machine. Auto-Adaptive Arc Force- minimizes electrode sticking in the puddle without compromising arc stability or increased spatter. Automatic Hot Start- boosts the current during starting to make striking an arc easier. Widely used on a variety of materials such as mild steel, carbon steel, alloy steel in the industries of structural s teel, light industrial fabrication, repair and maintenance, ect.