Universal Design fit for any car, SUV, or truck. do not destroy the original car lines, just paste it in the door and connect the positive and negative power supply to power on. With premium adhesive tape at the back, just stick the strip light at the edge of the car door, and connect the wire according to the instructions. Designed with a smart built-in driver and sensor, as well as a high-quality silicone material, it’s highly waterproof, more durable lifetime, more stable light source. When the car door is still opening, the red light will flash all the time to provide a warning to the passerby, motorcyclist, bicyclist, or other drivers, avoiding an accident or collision.