Wireless Design: No drilling or wiring required – easy installation with adhesive backing. Just stick the welcome lamp on the door panel . No harm to car. The projector lights can be installed on both left and right doors Door Warning Lights: The use of welcome lights can improve the grade of the car, while Projected signs can avoid accidents when getting out of the car. When you open the car door, you will see the Bright and vivid RS/SS pattern projects on the ground. It will be turned off when you close the door Automatic On/Off: Built-in sensor turns the light on when the door opens and off when it closes. Enhances visibility when entering or exiting the car in dark areas, adding both safety and style Suitable for all Vehicles: Compatible with most car models – a great decorative and functional upgrade Battery-Powered: Powered by standard batteries (not included), making it easy to maintain without complex setups. Powered by 3 Pcs AAA batteries, no need to modify car circuit. You can get 2 sets for 4 doors as most of our customers do (Attention: Not including AAA batteries) Package Includes: 2 x Wireless LED Car Door Logo Projector Light Installation steps: 1. Clean installation position 2. Tear off the red adhesive tape 3. Stick to the appropriate position of the car door ATTENTION: AAA batteries are not included in the package Upgrade your car’s style and make a lasting impression every time you open the door with this Wireless LED Car Door Welcome Light Projector. Designed to project a crisp pattern onto the ground, this ghost shadow lamp adds a unique and luxurious touch to your vehicle at night