Ensure your semi truck is Ready for the Road Ahead with a reliable power transfer to its lighting systems, with the Grote 5' Two Slim-Line Male to Two Under Light Female Jumper. With a straightforward design, this replacement wire is able to act as the bridge between an internal power source and an external light when a vehicle is switched on or off. Manufactured with a streamlined design for a rapid installation into connectors and lights. FleetPride is your First Click in Heavy Duty .