The lifetime of a lighting system is one of the most important buying criteria since it determines the running cost of the system for years to come. Running costs of a lighting system are the sum of the energy costs, lamp replacement cost (new lamp purchases and the cost for replacing the old lamps) and lamp disposal fees (if applicable). The cost of lamp replacements can be high when the lamps are not easily accessible and/or in situations were the re-lamping exercise creates nuisance (roads, tunnels, working environment, industrial production processes, shops, etc.).

The life of a lighting system depends mainly on the lamp life and the life of components like starters, transformers and ballasts. There are two important lifetime definitions:

Average life time: the time at which 50% of a certain batch of lamps will have failed
Service lifetime: the time that a user defines as optimal to replace (all) the lamps taking into account the risk that lamps will fail combined with the lumen depreciation of most lamps over time (sometimes a lamp still operates but the original brightness has come down to an extend that the users do not find comfortable anymore).

MOSTAR - Bulbs that really last

Next to lifetime of a lamp in general, the reliability of the projected lifetime is key. Now that more and more professional end-users choose to do the re-lamping exercise group-wise (all lamps at the same time instead of every time an individual lamp fails), it is very important to be able to predict the optimal time for replacing the lamps. Philips Lighting has invested a lot to not only extend the lifetime of its lamps but guarantee the reliability of the expected life times as well.

Within our automotive lighting products, MOSTAR has the Xenon HID range, a unique and innovative product that provides up to 2500 hours, almost the same as the life of a car. In the halogen headlamp section, there is the LongerLife range offering twice the life of a standard halogen by using bulb filled with Krypton gas.

Incredibly long life span and energy efficiency - LED light bulbs are set to brighten up your life