A luminary for exteriors and public carriageways includes a plate of fixed LEDs, the plate has aluminum in a superior section; a dielectric adhesive is located on an interior face, which isolates the plate electrically from a layer which forms electrical copper tracks that serve to make electrical connections between the LEDs, the tracks are connected in series with a power supply; and resting on these tracks and the dielectric adhesive is a final layer of isolating “white” dielectric film.