... AC/DC and pulse output, 2. 60% duty cycle, 3. TIG/MMA/CUT 4. reasonable price for muti-function welding machine FEATURES of Multi-function AC ... /DC Pulse TIG/MMA/CUT Welding machine SUPER-200P:1.Reactive power correction, MOSFET, AC ... , multiple functions of TIG, MMA and CUT;4.With pulse function;5.Thermostatic protection, over-voltage protection ...