1. It can be completely compatible with most Cars ,Trucks, SUV, RV, VAN, Trailers
2. This led tailgate light bar supply to 3 kinds functions, tail light,turn signal light ,brake light
3. Measure the screws diameter when you drilling
4. When you are driving or braking, the light will turn red, when you are turning the direction, the light will yellow effect, when you are driving straight, the light will show flowing colorful effect