I have a VMB4PD and VMB4RY.
Is there a clock available that makes it possible to power on a light at 16.30h and power off the light at 22.00h e.g.?
Probably it’s a stupid question but I don’t understand the manual to set this function.

Yes, VMB4PD has 4 built-in timers with week program.
Please check the documentation of the module for how-to instructions.

velleman.eu/downloads/0/velb … 4pd_uk.pdf

Starting at page 21: Programming the Timer