A19 Bulb Socket

This is the classic shape that most people are used to when shopping for a light bulb.

A19 bulb socket.

The e stands for edison and the number refers to how many millimeters the base measures horizontally. If you see a metallic base with screw threads approximately 1 inch in diameter you most likely have an e26 bulb. You can use this handy image below to identify the size of your a shaped bulb. So the light bulb that most of us have used in our homes here in the states is an a19 bulb with an e26 base.

The most commonly used a series light bulb type is the a19 bulb which is 2 3 8 inches 60 mm wide at its widest point and approximately 4 3 8 inches 110 mm in length. Alternatively this can be calculated as 19 multiplied by one eighth of an inch. Most a19 a60 light bulbs come with a one inch long edison screw base either of type e26 i e. You can most instantly recognize an e26 bulb by looking at the bottom or non light emitting side of the bulb.

In contrast to a19 referring to bulb head size e26 refers to bulb base size the base is the part that you screw to your light socket. 2 outlet light socket adapter e26 bulb socket to outlet splitter converts medium screw socket into a socket with two outlets polarized outlet ul listed white 2 pack by emnooti 6 88 6. An e26 bulb therefore is any bulb or lamp that utilizes the e26 cap or base for mounting and electrical contact. An a19 bulb therefore has a diameter of 19 divided by 8 inches or approximately 2 4 inches.

26 millimeters in diameter in countries with a mains voltage of 100 120 volts or of type e27 i e. The reason it s useful to know both the shape and base is because you can t just ask for one of these and get the bulb you re looking for. Dimensions of an a19 bulb by definition an a19 bulb has a diameter of approximately 2 4 inches. You can find led bulbs that fit that description here or other types of bulbs here.

In countries that use the metric system a19 bulbs can also be called.