Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be.
Standard light bulb socket sizes.
The image below compares our g40 and g50 bulbs in c7 and c9 base sizes.
Light bulb socket sizes chart.
The image below compares our g50 bulbs in all three base sizes.
The letter e before a number indicates it s an edison bulb.
Bulbs with these bases are the most popular of all screw base bulbs.
In the early days of.
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The edison screw fitting is a system of screw mounts used for light bulbs developed by thomas edison in 1909.
You don t want to buy a bulb only to find that it doesn t fit in the socket.
The light bulb base and socket are manufactured in a way that predetermines the light bulb s position in the socket.
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.
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.
Comparison between a15 a17 a19 a21 a23 light bulbs by their dimension.
Bulb base the final important piece to selecting the right bulb for your application is the bulb base.
Light bulbs come in a variety of shapes and sizes and are generally categorized by their bases the part that screws into a light socket.
The a15 bulb is 15 8 in 1 7 8 in.
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No matter how the end user places the light bulb base into the socket it will always turn and lock into the same position every time creating a fail safe for the light bulb s operation.
Another common a series light bulb type is the a15 bulb which is commonly used for appliances and ceiling fans.
Take the number and divide by 8 and that is the diameter of the bulb at its widest point.
To help you understand what shapes and sizes you will need we have created the following guide on light bulb sizes.