Which light switch do we need to run a light plus the extractor fan? It looks different to the others.

[Fluffycloudland77]

The one running the vestibule light looks different too 🤔

A photo would be useful

if it is supplied from the lighting circuit, an ordinary lightswitch is usually all you need.

If it is supplied from a socket circuit, immersion heater circuit or something, you may need a different one.

We don't know yet.