The Marsauto 9006 Bulbs HB4 HB4U 9006XS Fog Bulb is a pack of high-quality, super bright 6000K white light bulbs designed for vehicle use. With 12 CSP chips each, these bulbs provide exceptional illumination for foggy or low-light conditions. Made in China by the trusted brand Marsauto, these bulbs are a reliable and efficient choice for enhancing visibility and style on the road.