Make night driving a less stressful and more comfortable experience with the Sylvania SilverStar ULTRA Headlight, 9004, Twin Pack. The whiter lights are Sylvania's brightest and farthest down-road light and provide more side road vision. These auto headlights are specifically designed to help the driver achieve more clarity for a safer night driving experience. Sylvania achieves this using a specially designed filament, propriety gas mixture as well as a lamp coating that makes a brighter down-road light and shifts the color temperature towards a whiter light. Ideal for low-light and no-light conditions, these Sylvania headlights are easy to install and provide up to 50 percent brighter light than a worn standard bulb. This package contains two halogen bulbs, and each bulb has 230 rated life hours.