Introducing the GMC Sierra ColorSHIFT RGB+W Headlight DRL Upgrade from ORACLE Lighting. This product is designed to fit GMC Sierra Models with the Factory LED DRL Option.Featuring our new high-performance RGB+W chips, this new kit allows you to utilize the existing DRL feature on your GMC Sierra LED Headlights and easily convert it to Color-Changing DRLs while maintaining a true White DRL.These replacement boards feature our traditional RGB ColorSHIFT technology along with an extra "White LED" which allows for truer white tones, a crisp white DRL color option and the ability to instantly switch over for 100% legal road driving. These DRL boards can make hundreds of different colors, dozens of patterns, control the brightness, and even the speed of the functions as well!Give your GMC Sierra the attitude adjustment and stand out from the crowd with the new ORACLE ColorSHIFT RGB+W DRL Replacement Kit! Professional installation recommended with our premium silicone sealant. White and amber are considered on-road legal colors. Other colors not intended for on-road use; please verify your state and local driving laws.