TGP 31MM White 4 LED SMD 5050 Festoon Light Bulbs DE3175 DE3022 - Pair Content: 31MM 4 LED SMD White - Pair Compatiblility: With any Vehicle application for interior and exterior bulb replacement which requires a 31MM Color: White Dimension: 31x12 (Please check dimensions to make sure this LED will fit the housing application) Note: LEDs can be polarity sensitive. If you install these LEDs and they are not working, please flip them around and re-install them and you will be fine!