This product is wireless especially designed for auto modification fancier and it will not destroy the original car appearance, bring more driving fun The dazzle logo light and the signal light will display on the ground when you open the door and it will be turn off when you close the door 3D laser light of illuminated entry system Night to open doors, projection design can give others warn, avoid accident. It can be installed in both left and right door. Courtesy door light make your car artist moreover the atmosphere Automotive lighting decoration, pleasing light visual experience, improve the grade of the car Powered by 3 x AAA batteries 4.5 V(batteries are not included) Output power: 3 W Operating temperature: -40 degrees~105 degrees Dimension:6.7 x 6.2 x 1.5 cm Package Included: 2 x Wireless LED Car Logo Laser Projector. Color:Black,Brown,Beige. If your car with sloping door panels,don't buy it.If your car with flat door,you can buy it.