The territory of the City of Alès and Alès Agglomération has approximately 11,000 public lighting points, including about 3,000 lanterns equipped with mercury vapour lamps (fluorescent ball), energy-intensive, low efficiency and light performance. This project consists of replacing approximately 3,930 mercury vapour luminaires (fluorescent ball), with LED-source lanterns in the territory of Alès Agglomération covering a three-year programme.