Note: This LED bulb is polar sensitive, so in case the bulb won't light up, please flip it 180 degree. This listing is for a total of 13 blue lights that replace your stock Interior, dome, & license plate lights. All of these lights are a direct plug and play with no modifications required. Installation: Easy plug & play installation.Simply remove your old bulb and install the new LED bulb in it's place.If the light doesn't immediately turn on flip it 180 degrees. No special tools or skills are required.Installation for an entire car usually takes less than 10 minutes! Certain German cars will require a load resistor to avoid a lamp error warning. .
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