Contrary to popular believe, brightness does not make you stand out. It's maybe what you wish, but it doesn't, now that so many modern cars have ultra bright DRL's. A yellowish headlight however does. Philips specifies the lifespans of all their bulbs on their site. For the X-treme vision it is 300 hrs. My old Philips Visionplus lives forever, in spite of having had both filaments on more than once, due to a lame PA switch. If you choose the Ecovision, which draws 20% less current, you can expect a much longer lifespan (1500 hrs).