TGP 3157 White 64 LED SMD Wedge Reverse / Backup Light Bulbs and License Plate LED Pair 2007-2013 GMC Sierra 1500 2500 3500 Content: 3157 64 LED SMD Reverse Light Pair and T10 9 LED SMD License Plate Light Pair Color: White Dimension: 41x15mm Reverse Light / 29x11mm License Plate Light Bulb Important: Check dimension to make sure these LED's will fit housing. 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.