Standard Bulb Base Sizes

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.

Standard bulb base sizes.

E12 is the smaller candelabra base. Light bulb socket sizes chart. It s used for nightlight bulbs and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors. Langree a19 led light bulb 6w equivalent 60 watt 2700k soft white e26 medium base led bulb non dimmable standard replacement pack of 6 4 7 out of 5 stars 192 13 99 13.

Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be. 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. It s referred to as having a medium or standard base. 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.

A little larger than the. 8 8 1 diameter. Most of the light bulbs that you buy in stores or online are going to have this kind of base. E26 is the size of most light bulbs used in the u s.

10 8 1 1 4 diameter. This base was developed by thomas edison for the first light bulbs and is still in use today. Numbers in each code refer to the bulb s diameter in one eighths of an inch. Screw in bulbs use a base called an edison screw or es base.

Some common bulbs that use this base are appliance bulbs or desk lamps. This is the most common light bulb base that you can buy and is used in hid cfl ccfl halogen and incandescent light bulbs. 1 888 455 2800 fax 1 508 363 2900. 7 8 7 8 diameter.

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. The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters. Depending on their size these bulbs can be used in applications ranging from chandeliers wall sconces and pendant lights to basement and garage troffer light fixtures. Bulbs with these bases are the most popular of all screw base bulbs.