Compatible with 2003 2004 2005 2006 GMC Sierra 1500 / 2500HD / 3500HD Plug and Play, direct replacement of the original fog lights without changing any special wiring, our fog lights with all the necessary connectors, rubber seals New upgrade version is combined with fog lights and daytime running lights, made to replace the halogen fog lights ,giving your GMC an entirely new look High reliability, the internal protection mechanism design make it no flickering or failure, IP67 waterproof protection, Long service time, the high quality LED beads are used, more than 30K working hours, Working in all weather conditions Package include: 2PCS fog lights assembly with all mount hardware Fit for: 2003 2004 2005 2006 Sierra 1500 2003 2004 2005 2006 Sierra 2500HD 2003 2004 2005 2006 Sierra 3500HD INFO Specification: Voltage: 12V Housing Material: PC Lens Material: PC Type: Front Fog Lamp Package Include: 1 Pair of Fog Lights with Bulbs 2*Extension auxiliary wire(Connect ACC for daytime running light)