The Sylvania 9006 Silverstar ULTRA Halogen Headlight Bulbs 2 Pack are factory sealed and come with a 1-year manufacturer warranty. These DOT-certified bulbs provide bright white light with a color temperature of 4100K, offering the brightest down road visibility. With a wattage of 55W and 1800 lumens of light output, these headlight bulbs are designed for performance and custom fitment, making them a great choice for enhancing your vehicle's lighting system. Made in the United States, these halogen bulbs are a reliable and high-quality option for improving visibility on the road.