http://dx.com/p/mini-rgb-led-wireless-remote-controller-white-black-1-x-cr2025-191275
is working!
The version non-RGB isn't!

So this controller can be controlled by Domoticz? That would be great.
Is it also possible to control the specific colors?
I have a few of these at home to, can they be ...

RFXtrx433 Type1 version 71 can control these dx.com RGB modules:

This one has a learn option and any ID can be used: http://dx.com/p/rf-remote-touch-rgb-controller-130913

This one has a fixed ID and the ID of the remote must be used: http://dx.com/p/wireless-touch-panel-remote-controller-for-rgb ...