About D1S Bulb
Xenon headlights are a much brighter way to light the path ahead of you than traditional headlights or even halogen headlights, and they use a D1S bulb. The projectors that xenon headlights use are more focused and they are aimed lower than other projectors because of the type of light produced by the bulbs. This means that there is less glare ahead of you, as well as keeping glare out of the rearview mirror of the driver ahead of you. The D1S headlight bulb is becoming standard OEM equipment on cars from Audi, BMW, Cadillac, and Volkswagen, among others. Although these types of bulbs have a long life ahead of them, you eventually do need to replace them. When that time comes, it is important to have a bulb on hand so that you do not have to spend any time without your headlights. With the vast inventory on eBay, you can find the right D1S bulb for your car before you need it. That way, you are always ready to go with the brightest headlights available.