I have xenon lights from eBay... I like them, they are brighter and definately whiter. However, "Lifetime Warranty" is BS as Scott already mentioned. I had one set, one bulb died, I contacted the company they told me to ship it back to them and include a check for like $10 or so for "shipping and handling". All together it was pretty much the same as getting a new set of eBay which is what I did. By the way... when I contacted a seller about the "warranty" he said go deal with the company.

In any case, they are pretty cheap and my second set has been running fine so far, plus I now have one spare from the old set. One important thing - don't tocuh the bulb with your fingers or anything oily or it will die quickly. To be safe, even if you didn't touch it, clean it with some alchogol or something to remove any oil just in case.