Model: Approx Dimensions W 15.5\" x H 10.0\" Shown in Aluminum Housing with Acrylic Plate and Textured Back Plate. The Engraved Numbers will light up at night with Long life LEDs available in White, Amber, Blue, and Green. - \"ON/OFF\" Day/Night sensor included with the sign. Can be ordered with either with a plug in transformer 12VAC or Hardwired transformer 120VAC/60Hz - this sign uses less than 3 watts of energy and is very easy to install. Installation service paper available upon request. Bluetooth RGB module can be installed for an additional cost of $69.00. It can be applied using your Smartphone operating system such as Android and iOS and you change the color of your sign however and whenever you like.