Adopt MOSFET inverter technologh, brief and easy electronic circuit, compact, light and energy-savingStrong compensation for wire netting against voltage vibration of power source. Welding current is stable, the performance is reliableWith little no-load loss, compared to traditional welder, it can save electricity about 50%Inverter frequency reaches 100KHZ, high dynamic response, easy to strike arc; Arc is stable with low noise, deep molten hole, high strengthFine arc force adjustment, can prevent electrode sticking. Applicable for welding of each steel structure