Are A19 and E26 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.

Can I use A19 instead of E26?

To answer the question about whether A19 and E26 bulbs can be the same or not, YES they can. In the US, A19 bulbs must always have E26 type bases. This is based on ANSI standards imposed for bulb manufacturers in the US. That said, all A19 bulbs have E26 bases so all A19 bulbs are the same as E26 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.