Bright LED Emergency Vehicle Flash Strobe Lights Bar for Front Windshield Grille Deck Warning Light (54 Led, Red and White) Super bright LEDs. Interchangeable/Compatible with: All automobiles and devices equipped with a 12V power source. Extremely low power consumption rate. INSTALLATION: Connect each LED bar into extension cable, and connect the other end of the extention cable into the sockets on the controller. Wire the controller's black (- ground) and red (+ power) into the car's power source. Place lights at the desired location. Completely waterproof.