The Genuine BMW Map Light Bulb - 63319215622 is a replacement light bulb specifically designed for use in BMW vehicles. It is used to illuminate the map or reading light in the interior of the car. This bulb is an authentic BMW product, ensuring quality and compatibility with your vehicle. It is a direct replacement for the original bulb and is easy to install. This map light bulb is an essential component for maintaining proper lighting in your BMW's interior.