1. Advanced MOSFET inverter technology, stable current, low noise, high working efficiency; 2. Compact structure, convenient for carry, reliable and durable, easy for maintenance; 3. Thermostatic protection, over-voltage protection, over-current protection, under-voltage protection, suitable for filler wire welder; 4. High welding speed, little spatter, excellent weld appearance; 5. Suitable for MMA and TIG welder, applicable for stainless steel plate; 6. Complete accessories: welding torch, welding cable, earth clamp, welding holder, carton box. Spec. Model Spec. WS-200Power supply voltage AC 110+15% V / 50 60 HzAC 220+15% V / 50 60 HzPower supply capacity 5.5 kVADuty cycle 60%Rated output current (ARC) 155 ARated output current (TIG) 200 ANo-load voltage 55 VOutput current range (ARC) 5-155 AOutput current range (TIG) 5-200 APost-flow time 0.5-15 sPower factor (η) 0.93Protection IP 21Weight 14 kgDimensions (mm) 300 x 160 x 400