It is important that you consider the number, function and type of lighting you wish to use for illumination. It is a good idea to draw your lighting circuits on a floor plan and note whether the circuits should be switchable or dimmable. Once you have considered the lighting circuits, the next thing to think about is the type and number of lights per lighting circuit: they will determine the optimum module selection:
The dimmable light will need the evon Smart Home dimmer module L1424. Each module can control 2 lighting circuits. In addition to the dimmer modules, you will need a dimmer pack for each dimmable light suitable for your type of bulb, for example the Eltako SUD12 1-10 V universal dimmer switch. The evon Smart Home dimmer module L1424 controls the dimmer pack via 0-10V or 1-10V; you can switch your dimmer pack or an intermediate relay on or off via the digital output of the dimmer module. Two dimmer circuits can be connected to each module.
The other lights will either require the evon Smart Home lighting module L1244 with integrated 230V/16A relay or the evon Smart Home lighting module L1144 to connect external relays for larger loads. You can choose either, or ask your electrician to decide for you. Four lighting circuits can be connected to each module.
Two normal and two dimmable lighting circuits are to be installed in the bedroom.
Both of the normal lighting circuits are used for the ceiling and balcony lighting; an evon Smart Home module L1244 (with 16A relays) is sufficient here. Only two of the four outputs of the lighting module are used, the other outputs can and should be used for other rooms.
The two dimmable lighting circuits are reserved for two reading lights positioned left and right of the bed; they will use an evon Smart Home dimmer module L1424. In addition, we will use a dimmer pack each, which will be connected later to the modules.