Audi A4 2016, Performance Halogen Fog Light Bulbs by Lumen®. 1 Pair, White color bulbs. Upgrade your lighting with these superior-grade Performance halogen bulbs to see through the darkest nights. These bulbs feature a special blue partial coating that allows for up to 80% more light than the standard bulb. With these bulbs, you will also benefit from a greater range of illumination (40 meters longer than standard bulbs).