Install Instruction: ☞1. Install instruction about the batteries: Put 3 pcs AAA(1.5V) batteries in the battery case and install them according to the positive negative as marked in the case. Then close the batteries case. ☞2. Install instruction of the shadow light: Stick the Magnet on the bottom of the car frame. Stick the car light on the car door. The distance between the Magnet Car light is about 10mm. When you close the car door, the Magnet is at the under face of the sensor on the car logo light. ☞3. Automatic Control Manual Control: When you open the door, the logo will be shown on the ground, and it will turn off automatically after 2 minutes. If you want the light on/off, just need to press the button on the head of the light. One set includes 2 pcs, suggest you buy 2 sets for 4 doors of your car! Package includes: 2x Ghost Shadow Car Door LED Welcome Laser Projector Decoration Logo Light Specifications: - Type: Welcome Shadow Light - Material: ABS - Quantity: 2pcs - Item Color: Black - LED Color Temperature: 6000K - Power Supply: 3*AAA battery (Not Included) - Working Temperature: -40℃ to +105℃ - Size: 6.7*6.3*2.1cm / 2.6*2.5*0.8 inch (L*W*H) - Net Weight: 75g / 2.6oz