I hope I have posetd this in the right place. I have recently bought a converted flat that used to be a house (converted about 10 years ago). Most of the ceiling lights are R80 spotlights. They are problematic, expensive to run and ugly. How can I replace them with smaller halogen/LED lights when the hole is larger than the newer style lights? Will I have to have the positions re-drilled and the holes filled or can I but special adapters that will fill the hole?