Fits into regular 921 Bulb socket, Very Popular RV Bulb. Make sure vehicle is 12V. Remove and Flip 180 degree if LED didn't light up. (reverse the polarity)
Fits into regular 921 Bulb socket, Very Popular RV Bulb. Make sure vehicle is 12V. Remove and Flip 180 degree if LED didn't light up. (reverse the polarity)