Range from the cheapest Downlights installation £270 (MJD Electrical & Security based in PE20) to the dearest Downlights installation £340 (P Young Electrical Services Ltd based in LN6).
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 NG34.