Range from the cheapest Downlights installation £180 (K Winter Electrical Services based in LN8) to the dearest Downlights installation £440 (Enforce Limited based in DN15).
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 DN20.