... welder High duty cycle ,stable arc,energy saving,economical INVERTER TECHNOLOGY ,OEM A. Function and features1. IGBTAdvanced control program ... in a maximum way2. Adopted advanced full-bridge inverter technology of module 3. Easy for arc starting, little spatter, excellent ... ClassIP21C. Supply1. OEM, Machine Color2. One Year Warranty. 3. Technical Support. 4. CCC certificate XWD10251 Inverter Welder