Qualarc Edgewood Classic Rectangular Plastic Lighted Address Plaque with LED Lights Low Voltage, only 12-24 volts Can be seen up to 100 feet away Bright LED lights Can be installed into your existing doorbell transformer or purchase one of our transformers JBX-15951 to hardwire or FPS-2018 to plug in. Includes black polymer raised numbers -9 twice, number template, tube of adhesive glue and mounting hardware.