The Sylvania SilverStar Ultra 9006 HB4 55W Two Bulbs are high-quality halogen light bulbs designed for use in low beam headlights. With a warm white light color and a color temperature of 4100K, these bulbs provide a bright and clear illumination on the road. They are road legal, DOT approved, and come with a 1-year manufacturer warranty. The bulbs are a stock replacement upgrade with a voltage of 12V and a lumen output of 1800 lm, making them suitable for a variety of vehicles that require HB4 (9006) fitment.