Incandescent lamps (General Lighting –A Series), which is the most commonly used incandescent bulb shape, has a wide range of residential or commercial lighting applications. A60 bulb, also known as A19 in US, is also known as pear shaped bulb and are wildly use in ceiling lamp and table lamp lighting. A series bulb includes bulb shape such as A47, A60, A65 and A75. They are made in an extremely wide range of sizes, wattages, and voltages, which A60 could support a power ranging 25-75W, A60 incandescent light bulb can be seen in almost all E27 Edison screw base fixture or optional E26 base, while bayonet bases such as B22d are also available.
The incandescent light bulb or lamp is a source of electric light that works by incandescence, which is the emission of light caused by heating the filament until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation. It usually contains a stem or glass mount attached to the bulb's base which allows the electrical contacts to run through the envelope without gas/air leaks. Small wires embedded in the stem support the filament and/or its lead wires. Current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections. They require no external regulating equipment like driver or ballast, and work equally well on either alternating current or direct current.