Product Features: 1. Small and light : The size of the mid-frequency transformer in this series is reduced to only several % of that in the traditional arc welding machines. Our machines are about 1/5 1/10 as heavy and 1/3 as big as compared to the traditional ones.2. High efficiency: Energy efficiency reaches 80 85% and power factor can reach as high as 0.93. Over 1/3 of energy is saved compared to traditional arc welders.3. Step-less adjustment for welding current and voltage, can fulfil the requirements for different welding tasks.4. Stable welding with little welding spatter. Nice form of welded seam.5. Auto-compensation against power fluctuation. MainParameters Table: Input voltage (V)380Power factor0.93Rated input current (A)9.2Wire feed speed(m/min)2.5-18Output current (A)50-250Housing Protection grade IP21Rated output volt.(V)-Rated output current(A)250Insulation gradeFMax thickness (mm)≥0.8Duty cycle (%)60Efficiency(%)85Weight (kg)30Dimensions (mm)550×280×530RemarksInput voltage Frequency should be 50Hz.