They are VERY bright and last about 3 months. I've gone through 2 and reverted to a 40W/45W standard bulb bought from my local motor factors shop for £5.Speed Demon wrote:http://www.scootering.com/news/xenon-light-bulb
Got one of these - they are very good as a straight fit replacement
I had a 20W/25W in mine headlight, no wonder it was poor.
