Spyder Auto FL-LED-CSIL03-C Chevy Silverado/Avalanche LED Fog Light Complete set (both sides included) Increase visibility during heavy rain, snow, fog and night time driving Comes with light bulbs, on-off switch, wiring harness, relay and mounting brackets Designed as direct bolt-on replacement parts These lights are made by an OE approved and ISO certified manufacturer with the to quality meet or exceed all OE standards