All recessed and surface mounted downlights were substituted with LED models. As a result, the passenger tunnels are now well lit and have a much more pleasant ambience.

Please remove spaces between words.
AllrecessedandsurfacemounteddownlightsweresubstitutedwithLEDmodels.Asaresult,thepassengertunnelsarenowwelllitandhaveamuchmorepleasantambience.