TGP T10 Blue 4 LED SMD License Plate Wedge Light Bulbs Pair 2002-2009 GMC Sierra (ALL) Content: T10 4 LED SMD Blue - Pair Color: Blue Dimension: 8x18mm 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!