... IGBT welder High duty cycle ,stable arc,energy saving,economical INVERTER TECHNOLOGY ,OEM A. Function and features1. IGBTAdvanced control program, ... welding procedure in a maximum way2. Adopted advanced full-bridge inverter technology of module 3. Easy for arc starting, little ... )Input voltage Frequency(V,HZ)220V/50HZEfficiency80 (%)Power Factor(COS)0.93Rated input power capacity(KVA)2.5 (KVA)No-load ...