What Size Base Is A Regular Light Bulb

It s referred to as having a medium or standard base.

What size base is a regular light bulb.

The number that follows the a designation indicates the nominal major diameter of the bulb either in one eighth. 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. E26 is the size of most light bulbs used in the u s. It has a pear like shape and is typically fitted to either an edison screw or a bayonet cap base.

1 888 455 2800 fax 1 508 363 2900. A further explanation of the light bulb base sizes you can look at the letter number references e12 e17 and e26 to help understand a bulbs base style and size. 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.

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. E12 is the smaller candelabra base. It is found on smaller light bulb. E17 intermediate base is in between these two sizes.

Bulbs with these bases are the most popular of all screw base bulbs. It s used for nightlight bulbs and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.