A multi-filament light bulb or other electrical energy conducting article so arranged that the filaments can be individually energized by movement of a selector mounted on the base sleeve of the article for movement generally circumferentially thereof. When one of the filaments burns out, or a different wattage is desired for the bulb, the selector can be moved to couple another filament in circuit, and the bulb or other electrical conducting article need not be thrown away, thereby extending its period of usefulness. The arrangement is such that the selector can be mounted on the base without interferring with the conventional light fixture socket, including the conventional three-way socket.