TGP T10 Blue 6 LED SMD License Plate Wedge Light Bulbs Pair 2003-2013 Cadillac CTS (ALL) Content: T10 6 LED SMD Blue - Pair Color: Blue Dimension: 16x9mm Note: Some Vehicles will only require one LED per License Plate Application. Please use the other LED for backup since we only sell in pairs. Important: 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!