Made of "rust free" galvanized steel, the serrano is an elegant way to display a home address. These low-voltage fixtures (only 15-18 Volts) have a white back lit lens and are visible at over 100 feet away. The serrano provides fast and accurate address identification for guests, deliveries and emergency vehicles. Plaque comes with black polymer raised numbers 0-9 twice, a set of bulbs, 3 feet of low voltage wiring and tube of adhesive glue . Additional numbers can be purchased from the manufacturer: Qualarc. Can be installed into your existing doorbell transformer or purchase one of our transformers jbx-15951 to hardwire or fps-2018 to plug in. Dimensions: 10-1/2" x 5-1/2" x 2"