... setting,energy saving up to 50%,Toshiba MOSFET Inverter DC TIG180 welder (MOSFET) welding machine1.Advance inverter technology,small size,simple circuit design,light ... normally when the voltage changes±10%5.adopt high frequency arc starting,pluse strike,perfect performance,adequate welding current,good quality ... the quantity must be more than 50 sets.CE&ROSHAccessary Inverter DC TIG welder 180