>Advanced single-tube IGBT inverter technology, fast dynamic response. >Automatically identify power supply voltage, suitable for single-phase 220V, two-phase 380V. >Perfect overvoltage, undervoltage, overheating and overcurrent protection, safe and reliable. >Accurate digital display current preset, convenient and intuitive operation. >Acid, alkaline welding rods, stainless steel welding rods, cast iron welding rods can be welded. >Built-in thrust and hot arc initiation functions, effectively solve the problem of arc sticking and arc breaking. >Ultra-small body, easy to carry, multi-board structure, more reliable. >220V, 380V equivalent current output. >Suitable for outdoor construction, advertising decoration, iron art processing and other industries.