Dodolive&reg; Universal Pack of 2Pcs Wireless Car Door LED Projector Light Courtesy Welcome Logo Shadow Ghost Light Laser Projector Magnet Sensor Lamps Kit for MERCEDES-BENZ Black Size: 62*67*20mm; Power Supply: 3 x AAA battery (Not Included) Magnet Sensor control and ON/OFF switch control Easily to install it,Don't need to drill holes. 2 pieces of lights in package,it supports for 2 doors.