What Size Base Is A Regular Light Bulb

Bulbs with these bases are the most popular of all screw base bulbs.

What size base is a regular light bulb.

1 888 455 2800 fax 1 508 363 2900. The number that follows the a designation indicates the nominal major diameter of the bulb either in one eighth. It s referred to as having a medium or standard base. The a series light bulb is the classic glass light bulb shape that has been the most commonly used type for general lighting service gls applications since the early 20th century.

It has a pear like shape and is typically fitted to either an edison screw or a bayonet cap base. The intermediate e17 base is not very common. Bulbs with these base types can be used interchangeably as there is only a 1 millimeter difference in base size. E26 is the size of most light bulbs used in the u s.

E12 is the smaller candelabra base. They are commonly used for general lighting in standard light fixtures such as ceiling lights lamps can lights outdoor spotlight and flood light fixtures and. The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters. It s used for nightlight bulbs and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.

It is found on smaller light bulb. The e in the light bulb size refers to edison the inventor of the screw base light bulb and screw base light bulbs are sometimes called edison light bulbs candelabra bases are mostly used in smaller decorative incandescent cfl and ccfl light bulbs.