Quick Installation: You can directly stick the car lights on the door without changing the original lines of the vehicle. Long Service Life: Use high-quality and long-lasting button batteries, without frequent battery replacement. Efficient Work: As long as you open the door, the light will turn on. Directly remind the rear vehicles to pay attention to the situation. Waterproof Design: ERGAOBOY LED car light has a high standard waterproof design,don't worry about not being able to use it in rainy days. Wild Application:Suitable for most vehicles on the market,including the cars,suvs,trucks etc.