What Size Is A Standard Light Bulb Base

E12 is the smaller candelabra base.

What size is a standard light bulb base. It has a pear like shape and is typically fitted to either an edison screw or a bayonet cap base. It s referred to as having a medium or standard base. 1 888 455 2800 fax 1 508 363 2900. 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.

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. 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. E26 is the size of most light bulbs used in the u s. Unlike the light bulb shapes the number in the light bulb base measures the light bulb base diameter in millimeters.

Screw bases come in several sizes and they are referred to by both a descriptive name and size. It may not matter most of the time but in some games. An important detail that you need to know about the lamp is that it is a21 which refers to the shape and size. The standard household lamp is a19 with a diameter of 2 375 inches and a21 2 625 inches.

From top left to bottom right. The candelabra e12 has a diameter of 12 millimeters. Fluorescent pin bases miniature bipin medium bipin single pin recessed double contact 4 pin single ended 4 pin 2gx 13 axial twist lock bases 10mm gu10 10mm gx10 24mm gu24 bi pin bases 4mm g4 4mm gu4 4mm gz4 5 3mm g5 3 5mm g5 5 3mm gu5 3 5 3mm gx5 3 5 3mm gy5 3 6 35mm g6 35 6 35mm gy6 35 6 35mm gz6 35 8mm gy8 8 5mm g8 5 9mm g9 9mm g9 pin. Light bulb socket sizes chart.

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. A shape light bulb base types. It s used for nightlight bulbs and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors. Standard arbitrary a bulbs are the most widely used and thought of when it comes to household lighting.

Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be. 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. Bulbs with these bases are the most popular of all screw base bulbs. E17 intermediate base is in between these two sizes.