... invert technology,simply circuit design,portable size and light weight,high effective and energy saving.2.Super strong electricity network ... with traditional welding machine,energy saving up to 50%5.inverter frequency up to 100KHZ, speedy dynamic response,easy to arc ... arc,low welding noise,little welding spatter,deep melting pool,high welding strength,good welding quality. 6.good thrust adjustment, ...