Using your OLM LED fog light housings is a breeze. First, make sure your vehicle is turned off. Since it's a plug - and - play setup for factory - equipped fog light vehicles, just connect the lights using the provided 12v wiring. You can choose where to power the halo according to the sample locations in the additional tab. When it comes to installation, follow the basic steps and it won't take you long. As for maintenance, keep the lights clean. You can use a soft cloth to wipe off any dirt or dust. Don't use abrasive materials as they may scratch the lights. Check the wiring periodically to ensure there are no loose connections. Remember, these lights are sold as a pair, so make sure to install both properly for the best effect.