Service Description : We have Arc 400i which is a single phase inverter welding power sourc... We have Arc 400i which is a single phase inverter welding power source designed for light and heavy duty applications for continuous electrode usage. Designed for MMA electrodes upto 4.0mm size -MSGP, LH, Stainless steel and Cellulosic. Adjustable Arc force for Superior Arc control. Digital Display for set current reference. Ready to weld package with Electrode Holder and Earth Clamp.