I have just purchased a new outside light fitting. When I came to connecting the wiring, N/E/L - there is, from the mains wiring a spare yellow sleeved wire which I take needs to be "earthed" somewhere. Trouble is :cry: there is nowhere to do this. When I connect it to the "earth" wire terminal the light stays on all the time and when I cover it with a plastic cover, the light does not work.
Where or do I connect this - what advice can you please provide.