What is E26 medium base socket?
Robert Bradley
Published Mar 22, 2026
What is E26 medium base socket?
The most common type of light bulb here in the United States has what is referred to as a “Medium” base or “Standard” base. The word “base” is referring to the threaded part of the light bulb that screws into the socket. A Medium or Standard base light bulb is also referred to as an E26 base light bulb.
Are E26 sockets standard?
E26 is the American standard socket for E26 base bulbs rated for 120V.
Is E26 the same as Type A?
The “A” rating is the shape of the bulb. “E26” on the other hand indicates what kind of base the bulb has. (standard base) So to answer your questions in short, A19 and E26 is not the same.
Is A15 the same as E26?
There’s a “bulb size” and a “base size.” The bulb size is self explanatory. The A15’s are smaller bulbs, while the A19’s are larger. They both fit in a standard household medium base (E26 base.) A15 bulbs are usually recommended in a close quarters area, maybe on a small lamp or something.
Can E26 fit in E27?
These two standards are interchangeable, meaning a US E26 will fit in a European E27 base, and E27 will fit in a E26 base. The only difference is the voltage (for light bulbs). In fact there is only 1 mm difference between the threads of E26 and E27, so they are virtually identical.
Are E26 and A19 bases the same?
So to answer your questions in short, A19 and E26 is not the same. two different parts of the same bulb, but they are almost always combined. “E26” on the other hand indicates what kind of base the bulb has. Most A19s will have an E26 base, but there are a few exceptions.
Will a G25 socket fit E26?
Standard G25 shape with E26 medium base, which can be easily fitted to replace regular G25 incandescent or CFL light bulbs.
What is the difference between E26 and A19?
Actually “A19” is in indication of the width of the bulb around the thickest part (the white circular circumference). “E26” on the other hand indicates what kind of base the bulb has. A19 is the size and shape of the overall bulb. E26 is the Size, shape, and threading of the metal base.
What is the difference between A19 and A15 bulbs?
A15 bulbs are slightly smaller than A19 bulbs and typically come in outputs ranging from 10 watts to 40 watts. These smaller wattages are frequently used in applications such as appliances, signage and decorative lighting.
Is E27 a medium base?
E26/E27 Medium – Edison 26-mm or 27-mm Diameter Bulbs with these bases are the most popular of all screw base bulbs. 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 vanity lights.
What is a medium base light socket?
E26 is the size of most light bulbs used in the U.S. It’s referred to as having a “medium” or “standard” base. E12 is the smaller “candelabra” base. It’s used for nightlight bulbs, and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.