16.5~24V safety Volt when use; MPU been used in design and manufacture; Good QC system; 7~8 years life time from OEM factor MIG 200S Technical Features:* IGBT inverter technology,Current-mode control,reliable quality,Stable performance * Closed loop feedback,Constant voltage output,Resistance to nets pressure fluctuation ability(±15%) * Electronic reactor control,stable welding process,small ...