These 31MM LED bulbs are a direct-fit LED upgrade to the festoon base (or fuse-type) bulbs usually found in the interior of your vehicle, such as the map, dome, or courtesy lights. They are also used a lot for license plate bulbs as well. These will work whenever you have a 31MM bulb, or one with a 3022 base.
Brighten up your car's interior lighting with our festoon base LED bulbs! Otherwise known as fuse-type bulbs, they are commonly used in dome, courtesy, or license plate light bulbs. They plug directly into the factory base and usually work right out of the box with no resistor or other modification needed.