Since xenon lamps are ‘flash’ lamps and not continuous wave lamps, the lifetime of the lamp is much greater when compared to other lamps such as Halogen. Xenon flash lamps have a lifetime of hundreds of thousands of flashes, which translates into years of use, before there is any noticeable decline in functionality.
An easy way to determine if your xenon flash lamp is declining in intensity is to look at an experiment that has been repeated over several years in your laboratory. If you notice that the gain setting (under the Protocol Information tab in a MARS test run) has increased significantly with time when using the same concentration, then the intensity of the lamp could be decreasing. Please contact your local BMG LABTECH representative and have a preventative maintenance visit scheduled.