Arc 250i is a single phase inverter welding power source designed for light and heavy duty applications for continuous electrode usage. ï¼ -- Designed for MMA electrodes upto 4.0mm size -MSGP, LH, Stainless steel and Cellulosic. ï¼ -- Wide mains voltage tolerance range 196V-264V. ï¼ -- Adjustable Arc force for Superior Arc control. ï¼ -- Digital Display for set current reference. ï¼ -- Ready to weld package with Electrode Holder and Earth Clamp