Using PMW control technology, constant voltage (CV), constant current (CC), output control, welding current, and voltage can be exactly controlled. Built-in polarity converter: suitable for Wire Welding for flux (gales) With auto protection function: to prevent over-current and over-heating, makes the machine safe and reliable. Advanced inverter technology: high working frequency, high efficiency, and energy saving. short circuit transfer waveform control: stable welding with little splashing. With a tri-proof design, ensure stability and reliability in adverse circumstances.