The durable light with an up to FOUR times longer lifetime than standard halogen bulbs. The Osram Ultra Life automotive lamps are a favorite when it comes to durability. Their impressive lifespan is up to four times longer compared to standard lamps and lasts up to 100,000 km (with an average annual mileage of 14,259 km and 60% light on). In addition to this, ULTRA LIFE headlight lamps have a modern design with silver cap (H4/H7/H11). They are ideal for frequent drivers or people who employ daytime running lights, and can also be used in clear-glass headlights.