The ORACLE ColorSHIFT RGB+W DRL upgrade for 2020–2021 GMC Sierra 2500 HD converts factory LED DRLs into color-changing daytime running lights while preserving a true white OEM DRL. These boards produce hundreds of colors, offer multiple patterns, and let you control brightness and speed with the included Simple Controller. Intended for models with the factory LED DRL option; headlight disassembly is required for installation.
Oracle 20-21 GMC Sierra 2500 HD RGB+W Headlight DRL Kit - w/ Simple Controller