Range from the cheapest Downlights installation £330 (S Wright Electrical based in OX16) to the dearest Downlights installation £340 (Southway electrical contractors ltd based in Ox15).
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 OX15.