35W Xenon HID Bulbs Fog Light 10000K Blue - 880 881 899 - Replacement Pair Lifespan 10x longer than standard halogen: 4,500 hrs E4 and ISO-9001:2000 Approved. Brightness 5x greater than standard halogen All parts are tested before final packaging to maintain Quality Assurance! Luminosity: 3100 lumen bulbs