Incandescent lamps and bulbs emit light by heating the filament. They are economical and are used both indoors and outdoors as well as for dimmers, timers and for decorative applications. Specs Miniature & Specialty Equipment Lamps | Lamp Technology: Incandescent | Lamps Style: Miniature/Specialty | Lamp Type: G3–1/2 | Actual Wattage: 1.73 | Base Style: Miniature Bayonet | Voltage: 14.40