With street lighting, preference must be given to very-low voltage LED systems whenever it is possible to connect the studs to the public power network. Their installation involves some civil works but this technology then offers many advantages in terms of luminous power of the LED, service life, smart management using our micro-controllers, differentiated lighting technology for day- and night-time, interaction with other signalling systems, etc. There are no limits from technical and mechanical standpoints, with models whose strength has even been proven on airport tarmacs.