Light bulb sizes different size of light bulbs and its usage modern lamps have a variety of different shapes and sizes and needless to say they can become quite confusing.
Different light bulb socket sizes.
The edison screw fitting is a system of screw mounts used for light bulbs developed by thomas edison in 1909.
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In the early days of.
The letter e before a number indicates it s an edison bulb.
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.
There are usually eight different forms of lamps that can be used at home.
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 following provides dimensions of a bulb socket which is helpful if you re trying to match the socket size of a bulb you already have.
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