Light bulbs come in a variety of sizes and shapes, depending on where you're using them. The standard light bulb used in U.S. households is an A19 bulb with an E26 base.

Most light bulb bases in the United States are of medium size, designated as E26 (Edison). Note that there are certain bases, like candelabras that require a small size light bulb (E12).

Most light bulb bases in the United States are of medium size, designated as E26 (Edison). Note that there are certain bases, like candelabras that require a small size light bulb (E12).

Most light bulb bases in the United States are of medium size, designated as E26 (Edison). Note that there are certain bases, like candelabras that require a small size light bulb (E12).

Most light bulb bases in the United States are of medium size, designated as E26 (Edison). Note that there are certain bases, like candelabras that require a small size light bulb (E12).

Base size Most light bulb bases in the United States are of medium size, designated as E26 (Edison). Note that there are certain bases, like candelabras that require a small size light bulb (E12).

Light bulb bases refer to the end tip of a bulb that you install into the light fixture. Before installing, it’s important to ensure your bulb base will fit. When purchasing a new lamp or light ...

In general, the three types of color temperatures for light bulbs range in order from the most yellow to the most white: Soft White (2,700K–3,000K), Bright White/Cool White (3,500K–4,100K ...