Multiple factors contribute to automotive headlight bulb deterioration ... bulbs for the different lights around the car. You can find the specific type your car needs in the owner’s manual ...

Actual 3K or 12.5K color temperature (kelvin) is the average measured color temperature of 10 bulb samples ... The Sylvania Ultra-LED 100W LED20A21/DIM/0/827 is part of the Lightbulbs test ...