Spyder Auto PRO-YD-CS1098-CCFL-BK Chevy S10/Chevy Blazer Black CCFL Projector Headlight All the tail lights package will come as a pair left side and right side; designed as direct bolt-on replacement parts All wiring for the headlights was preassembled for essential plug and play application, halo rim wires need to connect and do some simple wiring connection These lights are made by an OE approved and ISO certified manufacturer with the quality meet or exceed all OE standards Some of the package includes light bulbs, for package which does not come with any light bulbs, you can apply the stock light bulbs for installation