A lighting and/or signaling device, in particular for the automotive industry, comprising a container body which delimits a containment housing closed by a lenticular body, which accommodates at least one light source adapted to emit a light beam which at least partially crosses the lenticular body, at least one decorative element, applied on an external wall of the lenticular body, opposite to the containment housing. An internal wall of the decorative element, directly facing the external wall of the lenticular body, comprises at least one welding pin, which creates a welding point with the lenticular body. At least one spacer element defines a minimum clearance and a volume or gap between the external wall of the lenticular body and the internal wall of the element decorative element. At least one conveyor element favors the outflow of liquids which have penetrated through the clearance into the volume.