Range from the cheapest Downlights installation £265 (South Lincs Electrical based in LN2) to the dearest Downlights installation £390 (S Gladding Electrical Services based in LN2).
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 LN5.