Join Date: Dec 2013
Location: Westchester County NY
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 50 Post(s)
| ||LinkBack||Thread Tools||Display Modes|
Interesting topic....been discussed before here. My experience has been that these bulbs degrade over time loosing some % of their intensity through filament degeneration as well as a film developing on the inside and outside of the glass enclosure.
When a bulb on my car blew last July I purchased a pair of standard 4300K white bulbs and at first only changed the failed bulb assembly. At night the new bulb was noticeably whiter and brighter than the other side with the older bulb. After removing the other bulb it was evident that there was a film on the glass on the outside. I wiped the glass and the film came off on a wet paper towel but there was some on the inside, too. Sure it was a contributor to the reduced brightness.
I purchased my bulbs from a website called Onyxlights.com which has all of the xenon intensities available. They state that the bulbs they sell are warrranted for a year / lifetime 3000+hours.
Just my experience