"James" wrote in message
...
Hi,

I have had some good response from this newsgroup before, so I hope
someone
can help me understand this.

The objective is to fit an additional outside light, a lantern style one
with PIR. I want to avoid complicated wiring if possible.

snipped

Thanks,

James


Try looking through the wiring schemes on this site:

http://www.diydoctor.org.uk/projects...d_switches.htm