Functions: Anti rear-end/collision, when the door is opened, the white part is always on, used for lighting, and the red part is flashing, used to warn the car behind. Prevent pedestrians and vehicles passing by at the moment of opening the door from colliding with the door and causing accidents. Waterproof and durable soft silicone body. Universal Design: Suitable for any car, SUV, truck. Dont damage the original car circuit, nor damage your car, use double sided adhesive tape, just paste it on the door and connect the positive and negative power supply. High-brightness LED lamp bead brightness high and low light decay life long durable. Premium Made Silicon Tube: Made with high quality silicon material with 144 Led chips installed on the light, gives warning to the moving objects coming from behind, Flexibility: due to its flexible nature you can apply it anywhere you want to install on the door by giving your desired shape to it.