Halo Automotive Super White 3157 (12v 27/8w) Bulb - Single Pack Halo Automotive Super White series features a cool blue high temperature resistant coating that is rated at 4,500k, lighting the road of any kind of hazards before any other halogen bulb could Halo bulbs are engineered with anti-vibration and long life technology combined this increases the life of Halo bulbs by 30 percentage Halo bulbs are made with the highest quality quartz glass making them resistant to shattering and moisture Halo Bulbs have the ultimate performance, looks, and reliability Halo Bulbs outlast and out perform the competition for a fraction of the price