The Power Cord for LED Backlit Numbers is designed to connect and power the address plaques #AL69003 and #AL69005. This cable is intended for the address plaques use ONLY. Installation type B: which consists of installing the numbers on the address plaque. Connect the plaque 120V wires to the power cord bare wires using the twist-on connector (included). Then, plug the power cord extremity into a wall outlet inside the house (120 V). It features a 6 foot long cable and a 3-prong plug (with ground). Very easy to install.