Prepare your semi truck to be Ready for the Road Ahead , with the Grote 12' Two Slim-Line Male to Two Female Jumper that provides a reliable power transfer to its lighting systems. Thanks to its ability to act as a bridge between an internal power source and an external light, this replacement wire is able to transmit currents when a vehicle is switched on or off. Crafted with a streamlined design for a rapid installation into connectors and lights. FleetPride is your First Click in Heavy Duty .