What Size Is A Standard Light Bulb

Candelabra a smaller screw in base denoted most often with an e12.

What size is a standard light bulb. Standard medium a regular sized screw in base usually denoted with an e26 or e27. E12 is the smaller candelabra base. Other sizes with a data sheet in iec 60064 are a50 a55 a67 a68 a71 a75 and a80. To help you understand what shapes and sizes you will need we have created the following guide on light bulb sizes.

E17 intermediate base is in between these two sizes. E26 is the size of most light bulbs used in the u s. Light bulb socket sizes chart. Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be.

The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters. 60 mm wide at its widest point and approximately 4 3 8 inches 110 mm in length. A19 bulbs are the most common light bulb shape so this is what you ll see the most. The most common light bulb base types are.

1 888 455 2800 fax 1 508 363 2900. The most commonly used a series light bulb type is an a19 bulb or its metric iec equivalent the a60 bulb which is 19 8 in 2 3 8 in. Bulbs with these base types can be used interchangeably as there is only a 1 millimeter difference in base 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.

From top left to bottom right. Standard arbitrary a bulbs are the most widely used and thought of when it comes to household lighting. It s referred to as having a medium or standard base. Bulbs with these bases are the most popular of all screw base bulbs.

A19 led filament bulbs in ceiling fan fixture a21 led bulbs in bedroom lamps a19 gold tint led filament bulb in porch light fixture a19 led fireworks bulbs in string lights. What are the different light bulb bases. 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. It s used for nightlight bulbs and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.