Range from the cheapest Downlights installation £213 (Sparky and Plumb Ltd based in NG1) to the dearest Downlights installation £410 (Niman Electrical Services based in NG3).
Comparing electricians estimates for Downlights installation gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for installing downlights by posting a job to electricians in NG14.