LumiSign is the original Auto-Illuminated License Plate Frame. No wires, installs in seconds, battery operated, and only lights up while you're braking so batteries last up to 6 months.Battery Operated and Installs in Seconds with No Wires to Install to Car; Simply screw LumiSign in the same as a regular license plate frame with the included screws Automatically lights up while you are braking (or Accelerating when placed on the front of a car) and stays on for an additional 3 seconds; then, it automatically turns off to save batteries (which can last up to 6 months in Low Brightness Mode) Choose from Hundreds of Interchangeable Inserts that slide in to LumiSign without any tools needed while LumiSign remains secure on your car; Customize your own Inserts here or choose from hundreds of pre-made Inserts made in the USA; Additional Inserts can be purchased now or later that use the same LumiSign frame so you can support your favorite team in the Fall, then easily swap out the Inserts to support another team or cause in another season Universal Design allows LumiSign to slide up and down when installing to properly display your registration stickers in most states; 3 LED lights shine down to illuminate your license plate number; 3 Brightness Modes of Low, Medium, High; Weatherproof Patented Design; Check local laws before adding batteries to illuminate the inserts and make sure registration stickers are visibleINCLUDES:1 LumiSign Frame2 Designed Inserts of our choice (1 Top and 1 Bottom)4 Phillips Head Screws (2 Machine Type, 2 Sheet Metal Type)(Requires 4 AA batteries not included. Anti-Theft Screws Sold Separately.)Get 2 LumiSigns, 1 for the front and back of your car!