Rated input voltage(V):AC220V+/-15%,AC380V+/-15% Rated frequency(Hz):50/60 Rated input current(A):20 9.6 14 1.ApplicationAdopt advanced inversion technology, with features of small volume, light weight, low noise, energy-saving.High-speed dynamic response, little splash, good arc concentricity and outline.External pedal controller, adjustable currentObtaining different external power supply ...