ABOUT THIS ITEM: Power Factor correction (PFC) technology, To enable to accept 95-275 volts input automatically, To reach 0.93-0.99 power factor to improve energy utilization efficiency, Portable stick welder, New generation IGBT inverter technology, Built in Anti-Sticking and Hot start, Thermal protection and power indicator light, Easy to use and user friendly control panel, IP21S protection class, Light weight small and compact design