Solid cast brass, with raised lettering and relief detail, and recessed Black Enamel background.Button light works with a 12 volt transformer only. Please check for compatible voltage. See more items from our Doorbells category. Specifications Item # 7545 Finish Shown Lacquered Polished Brass Height 3.75" Width 1.325" Center To Center 2.625" Price As Shown Base Total $48.00 Grand Total $48.00