Abstract: A lighting device, in particular a light signaling supplementary device for rescue and emergency prioritary vehicles, heavy transports and vehicles, and work machinery is described. The lighting device has a light source placed on a disposition plane and a semi-parabolic reflector body for the conveying of the light within a predefined exit angular aperture of ±? of the light beam with respect to the disposition plane. A semi-parabolic reflector body of the lighting device can be rotated around a rotation axis that passes in correspondence of a center of said light source and is perpendicular to said disposition plane, in such a way to obtain a light beam which spans a predefined maximal angle around said light source.

Abstract: The invention concerns a lighting device (100,100?), wherein the light source comprises a plurality of LEDs (110) and a reflecting body (120) for the housing of the source and the conveying of the light according to a pre-defined exit angle of the light beam, characterised in that: the internal surface (125) of said reflecting body (120) has a cross-section, with respect to its principal extension direction, that comprises at least two portions (121, 121?) of a parabola which are symmetrical with respect to the axis of the same parabola; substantially in the focus of said cross-section is housed a plurality of LED (110); the LEDs (110) of said plurality of LEDs being connected to a first side of a laminar strip (130), on the second side (132) of the laminar strip, side facing in the direction opposite to said reflecting body, being connected a dissipative band (140) for dissipating heat generated by the LED (110).

Abstract: A water craft includes a rigid tubular hull structure corresponding to the structure of inflatable tubulars of known rubber dinghies. Preferably, the hull is made of polyester reinforced with glass fiber, plastic or metal. The external shape of the tubular hulls is cylindrical or other similar shape, and in the internal part, the tubular hulls are provided with a structure that considerably increases the internal space of the hulls, while maintaining the typical shape of rubber dinghies. Lateral seat backs may be provided on hinges on the upper external edge of the craft, and built-in seats are provided on the upper, external surface of the craft.