UV replacement spotlight 40W for Cintropur 4100.

Lifetime: 9000 hours (one year = 8760 hours). That with continuous operation around the clock, the lamp should be replaced after one year.
The operating time can be extended by using a timer.
To monitor the service life of the lamp, it is advisable to use an energy cost meter to monitor the switch-on time (costs less than 20 €).
A 5 ° turn is enough to remove the lamp and replace it with a new UV lamp. Not even the water needs to be turned off.