Martin Angove wrote:
Bear in mind that *each* point on a lighting circuit must be considered
to be 100W or actual load if greater, with no diversity.
I had always read that one as only applying to standard BC/ES fittings.
If the lights in question are LV then they'll be limited by the
transformer to n Watts and that's the figure I'd use.

However if the LV fitting is replaced by a standard mains one ...

In such circs I would treat the transformer as one point, as 100W min.

Owain