A lighting unit (1) procedure comprises a source of laser light (8a, 8b), a lighting head (4) is offset of the light source and a light guide to the optical fiber (11) is interposed between the light source and the lighting head in order to drive the light of the source of laser light to the lighting head. An element of phosphorus (15) is interposed between the light guide and an output of the illumination of the lighting head in order to convert the luminous radiation laser in a white light at the output of the lighting head.
