iPerfect 60" Waterproof Red/white Tailgate LED Strip Light Bar Truck Reverse Brake Turn Signal Tail for Chevrolet Chevy Avalanche Silverado Cadillac EXT 2001-2015 Can completely compatible with Chevrolet Chevy Avalanche Silverado Cadillac EXT 2001-2015 This led tailgate light bar supply to 4 kinds functions, tail light ,reverse light,turn signal ,brake light Flexible and easy to installation even can mounted to the rear window,party household decoration and so on ,as long as the length is suitable Measure the screws diameter when you drilling Please find your original bulbs positive using 12 DC battery first Color: Red for turn signal, parking and brake, white for reverse lights.