Features: Digital display. The digital display adjusts the current more timely and understands the condition of the welder. Advanced ACR/ZX7/IGBT/MMA technology, guarantee a stable and large power welding work. High frequency inverter, features quick arcing and less welding splash. Energy saving,Inverter energy saving, first-class energy saving. Current regulation. The current can be adjusted as needed. (10-300A) Specification: Material: metal + ABS plastic Voltage: 220V Current: 10-300A Rated input power capacity: 25KVA Color: Red Rated frequency: 50/60Hz Efficiency: 92% Power factor: 0.9 Protection grade: IP21.