From the factory, most vehicles come with halogen bulbs, which project in a yellowish light. By replacing your stock with LED fog light bulbs, you can create a modern appearance with the cool white light of LEDs. The installation is 100% plug-and-play, just replace your factory bulb! Fits 2010-13 Camaros with RS package only (will not fit other years) with factory DRL lights. Will not work without an adapter to convert DRL lights to Fog Lights. Will also fit ZL1 Camaros on the DRL lights (the upper light). Has a cool white output which makes for a good match for the factory Halos and HID headlights.