1. This product works as car courtesy light, when you open the door, the car logo will be projected on the ground. When the door is closed, the light will be off automatically. You will find this light is so cool when you open the door! 2. This product is specially designed for auto modification fancier. 3. The product can be only installed at the car door. 4. Special design cause the product with strict waterproof and thermal performance, which will make sure the normal service in various harsh environment. 5. Automobile decorative lighting, provide you with delightful light visual experience. 6. Suitable for Mercedes-Benz E-Class W124 1986-1994 / W210 1996-2002 / Vito W639 2013-2017