The Sylvania H13/9008 SilverStar ULTRA Halogen High Performance Bulbs are designed for high performance and durability. These warm white bulbs have a color temperature of 4100K and provide 1800 lm of brightness. Suitable for various lighting applications such as dual beam, high beam, low beam, and headlight, these bulbs are road legal, CAN bus compatible, and DOT approved. With a bulb life of 200 hours and featuring a rust-resistant design, these SilverStar Ultra bulbs offer a reliable and efficient lighting solution for your vehicle. Made in the United States, these bulbs are a stock replacement upgrade for your car or truck.