The Interpretation Centre of Lighthouses and buoys located in the former engine room retraces the history of these light towers from antiquity to our days. Here you will find a collection of turbines, lenses, lamps and reflectors; all of which bring to mind the keeper's functions and his life. The light of Ouessant's lighthouse is made up of four lamps which provide a luminous power of 20 million candelas and extends to an average range of over 60 km.