1. This product works as car courtesy light, when you open the door, the car door will strobe warning light for 10 seconds and perform static light. When the door is closed, the light will be off automatically. 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. Easy installation, just plug and play
