Rear-signalling light for motor vehicles

Described herein is a signalling light for motor vehicles made up of: a support (1) for lamp-bulbs or LEDs (3); a component element (7), made up of two symmetrical half-shells (12, 13, 17, 18) comprising a base (8, 15) and a set of reflecting dishes (11) set in a row, basically divided along the plane passing through their axes of symmetry; a shell (20) designed to be inserted by snap action on the component element (7); and a lens (22) for closing the compartment defined by said shell (20).