What Size Base Does A Standard Light Bulb Have

It has a pear like shape and is typically fitted to either an edison screw or a bayonet cap base.

What size base does a standard light bulb have. Light bulbs have identifying characteristics that are represented by a letter or series of letters and a number. 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. A19 bulbs are the most common light bulb shape so this is what you ll see the most. Light bulb socket sizes chart.

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. The number that follows the a designation indicates the nominal major diameter of the bulb either in one eighth. Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be. Candelabra a smaller screw in base denoted most often with an e12.

The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters. Standard medium a regular sized screw in base usually denoted with an e26 or e27. The most common light bulb base types are. 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.

However an e26 bulb can fit in e27 base and an e27 bulb can fit in e26 base without problem. These codes tell you if a bulb will fit in your fixture and if it s the right shape. You can compare most common e size designations with a thread diameter see the specific light bulb name for that size see what are the most common applications and even see the official standard for light bulbs. Screw in bulbs use a base called an edison screw or es base.

The candelabra e12 has a diameter of 12 millimeters. The e26 is the standard 120 volt american base. What are the different light bulb bases. Learn more about bulb codes and browse a visual guide to find what fits your fixture.

1 888 455 2800 fax 1 508 363 2900. 1 888 455 2800 fax 1 508 363 2900. These are known as light bulb codes. Bulbs with these bases are the most popular of all screw base bulbs.

Unlike the light bulb shapes the number in the light bulb base measures the light bulb base diameter in millimeters. E26 is 26 mm and the e27 is 27 mm diameter.