Caswell Plug N' Plate Nickel/Copper Electroplating Kit Includes Nickel and Copper Plating Systems Perfect For Plating Nickel Onto Pot Metal Parts (Plate Copper, then Nickel) Full Instructions and Free Technical Support Included Contact Caswell If You Have Any Questions Before Purchasing Power Supply: 110VAC Input, 4.5V 300ma DC Output. US Plug