Weld Cleaning System, Maximum Output Current 15 A, Input Voltage 120V AC, Output Voltage Modes AC (Cleaning and Marking), DC (Polishing and Etching), Receptacle Type Refillable Electrolyte , Includes Wand, Series Surfox Mini, Compatible Material Type Aluminum, Stainless Steel, Titanium, Features Instant Cleaning of Heat Tint on Welds, TIG at a Speed of 5 ft/Minute, Refilling Pump, Variable Current Output Knob, Frequency 50 Hz, 60 Hz, Input Current 4 A