Electrical lighting bulb for use in edifice, has coaxial opaque stub provided with proximal section that includes electrical conductive pads connecting stub to conductive pads of bulb support

摘要

The bulb (1) has a coaxial opaque stub (3) made of a heat insulation material or polypropylene, and placed at a base of an oblong hollow body (1a) made of glass, where the stub includes a cylindrical distal section (3a) with a cross section smaller than that of the body. The stub is crossed by electrical supply conductors, and includes a fixing and connecting proximal section (3b) i.e. diametric plate, having engaging shapes for adaptating the proximal section in a bulb support (8). The proximal section includes electrical conductive pads for connecting the stub to pads of the support.