Thanks for the info.
Used an electrician to fit 6 mains halogen, so Part P covered.
Part L covered by accident as they replaced old fashioned spots on
a central fitting.
I'm fitting mains halogen downlighters in my kitchen, 3m by 4m. How many 50w lights should I use or would be sensible in a room that size. Because of the position of the joists I need to work in multiples of 3. I was thinking of 6 with 9 being too many.
Thanks for any ideas or views.