Product Features: 1. Clear and reliable digital display of welding current. 2. Protection against over-voltage and over-current.3. Advanced inverter technology. Suitable for TIG and MMA operations.4. Easy to start the arc, stable welding current with fast response. Silent, little spatter and magnetic bias, nice form of welded seam.5. High efficiency and energy saving. Small, light and portable.6. Water cooling function with settings.MainParameters Table(WS-200): Inputvoltage (V)220VPower factor0.73Rated input current (A)MMA/TIG43/28No-load loss (W)40Output current (A)10-200Housing Protection gradeIP21Rated output volt.(V) MMA/TIG28/18Rated output current (A)200Insulation gradeFMax welding thickness (mm)8.5Duty cycle (%)60Efficiency (%)80Weight (kg)9Dimensions (mm)400×153×291RemarksInputvoltage frequencyshould be 50/60HzNO-Load voltage(v)56