Abstract: There is described a lighting device (100) comprising: means for generating a plurality of beams of light radiation (1, s1-sn); an optical component (4) facing said generating means to allow propagation of light radiation; a housing (2) for the generating means and for the optical component equipped with an opening (8) for the emission of light radiation. The optical component (4) is rigid and is such as to substantially fill a region interposed between the generating means and the emission opening.

Abstract: An electrical connection device is described comprising: a cable gland body defining an inner housing and at least an electric cable arranged in said housing and comprising an electrical wire and a coating insulating sheath. The electric cable has an exposed length of the electric wire without said sheath and internally arranged in the housing. Furthermore, the connection device comprises an impervious-type and electrically insulating filling material of the housing, which encloses said at least one electric cable and the exposed length by interposing itself between the electric wire and an inner face of the cable gland.