I have just fitted a dimmer switch in a bedroom. There were originally wall lights and ceiling lights, I have removed all the wires for wall lights and since decorated the room. When I turn off the dimmer switch (I can hear the clicking sound so I know it is off) the clear bulbs in the ceiling light (5 of them) stay on! They are lit by such a small tiny amount you can just see an orange glow?
I'm sure they didn't stay on when I fitted them at the weekend but now they do?