Note:For Ins Stickers,it's not DIY item,you need to write the text by yourself when you get it,just like this 100% crystalline materials are used Ultra-thin as paper, uniform brightness, hardly occupying the interior space of the car, only 0.35mm thick. Extremely low power consumption, only 1mW per square centimeter of light source. The light is uniform and soft, without dazzling, flickering, radiation, and gorgeous color. Strong weather resistance: the luminous effect will not be affected by the vibration of the vehicle during driving. It does not generate heat during operation, has good fog permeability, and does not produce harmful rays. Specifications: Wanted Size: 27*4cm Connecting Cable Length: 60cm Weight: About 50g/set Power Supply: 2 No. 7 batteries, excluding batteries Usage: Stick the luminous car sticker to the window, arrange the line, connect the driver, and turn on the driver switch to light up Products Include: 1 * Luminous Car Sticker 1 * Connecting Cable 1 * Driver