This is based on the ansi standards that apply to light bulb manufacturers in the united states.
Standard us light bulb socket size.
The a15 bulb is 15 8 in 1 7 8 in.
Which refers to the shape and size.
The a19 has a diameter of 2375 inches and a.
A21 bulb in a a19 socket.
48 mm wide at its widest point.
Sockets allow lamps to be safely and conveniently replaced re lamping.
It s referred to as having a medium or standard base.
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That said all a19 lamps have e26 bases.
It s used for nightlight bulbs and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.
Alternatively a purchased brand e g ge or sylvania of a non decorative lighting standard household bulb may have a g40 bulb that is 40 8 in size or 5.
The standard household lamp is a19 with a diameter of 2 375 inches and a21 2 625 inches.
Another common a series light bulb type is the a15 bulb which is commonly used for appliances and ceiling fans.
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E17 intermediate base is in between these two sizes.
Light bulb socket sizes chart.
An industry confusion for sure so for accurate sizing of our decorative string light bulbs be sure to refer to each item s product specs.
Other sizes with a data sheet in iec 60064 are a50 a55 a67 a68 a71 a75 and a80.
Serbion 6 pack e26 the us standard screw light holder plug adapter polarized handy outlet light bulb socket light socket adapter two holes convenient and practical project black 4 5 out of 5 stars 322.
A lightbulb socket light socket lamp socket or lampholder is a device which mechanically supports and provides electrical connections for a compatible electric lamp.
There are many different standards for lampholders including early de facto standards and later standards created by various standards bodies.
E12 is the smaller candelabra base.