Headlight:A Headlight (headlamp) is a lamp attached to the front of a vehicle to light the road ahead. Headlight performance has steadily improved throughout the automobile age, spurred by the great disparity between daytime and nighttime traffic fatalities. Headlights are one of the most important components of your vehicle; they allow you to see the road in front of you clearly during the night and in any bad weather that may arise. Our headlights upgrade the face of your vehicle with clear style and extreme range.Day Time Running Light:LED daytime running lights do not only play the role of lighting, but also to warn pedestrians and vehicles that a moving vehicle is approaching and in working condition. In short, the aim of daytime running lights are to provide safety and you are welcome to use new products under daytime running light series.Package Included:1 x Pair of Headlights1 x Pair of Universal LED Fog Lights (Switch Not Included)This product is compatible with:07-13 GMC Sierra 1500 / 2500 HD / 3500 HD