Caswell Plug N' Plate Nickel Electroplating Kit Easily Plate Nickel over Copper, Steel, Iron, Silver, Brass and other similar metals. Just Plug In The Power Pack and Plate. Power Supply: 110VAC Input, 4.5V 300ma DC Output. US Plug Full Instructions and Free Technical Support Included Perfect As An Underplate to gold, or as a final finish on cabinet pulls, etc. Contact Caswell If You Have Any Questions Before Purchasing