The candelabra e12 has a diameter of 12 millimeters.
Standard light bulb base size canada.
Unlike the light bulb shapes the number in the light bulb base measures the light bulb base diameter in millimeters.
Pin base light bulbs have two pins on the base that connects the bulb to the voltage.
A medium bulb base is the most common type of base and is found on most standard household bulb.
From top left to bottom right.
They are differentiated by the e size which is a reference to their size in millimeters.
Bulbs with these base types can be used interchangeably as there is only a 1 millimeter difference in base size.
The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters.
Take the number and divide by 8 and that is the diameter of the bulb at its widest point.
Standard arbitrary a bulbs are the most widely used and thought of when it comes to household lighting.
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.
Bulb base the final important piece to selecting the right bulb for your application is the bulb base.
Screw bases come in several sizes and they are referred to by both a descriptive name and size.
You don t want to buy a bulb only to find that it doesn t fit in the socket.
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.
Screw in light bulbs have different base sizes.
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.
Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be.
For example an e10 base would be 10 millimeters in diameter.
Here are the typical sizes.
Bulbs with these bases are the most popular of all screw base bulbs.
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