When the user opens the door, the bottom light of the door can be turned on. After the car is turned off, the welcome light will also be turned on, illuminating the ground at the moment when the door is pushed open. After the door is closed, the welcome light can be turned off, so you don't have to worry about not seeing the road clearly when you get off. At the same time, there is an automatic headlight delay configuration, and the road conditions in front of the vehicle can be clearly seen.