How long will a 10W Solarc lamp last?
We test the lamp under laboratory conditions with a one-hour-on cycle followed by a 15-minute-off cycle (to cool down). Our tests have consistently shown a median life in excess of 1000 hours for our 10W Solarc products. Median life means, in a population of lamps, half of them will fail before 1000 hours and half after 1000 hours. It is a statistical process and you will never know whether your lamp is going to last more or less than the nominal value until it fails. It is possible for lamps to start failing in only a couple of hundred hours and some may last beyond 1500 hours. The same theory applies for halogen lamps too; however, their median lives are usually much shorter. Higher wattage Solarc lamps also have shortened lives in this application. You should consult with the bike light manufacturer to understand how lamp life in their product may differ from the data we have quoted due to environmental reasons.
