What Is A Standard Size Light Bulb

Standard arbitrary a bulbs are the most widely used and thought of when it comes to household lighting.

What is a standard size light bulb.

All standard 100 75 60 and 40 watt incandescent bulbs have been phased out and will no longer be produced. Bulbs with these base types can be used interchangeably as there is only a 1 millimeter difference in base size. You can use this handy image below to identify the size of your a shaped bulb. 1 888 455 2800 fax 1 508 363 2900.

From top left to bottom right. This is the classic shape that most people are used to when shopping for a light bulb. Other sizes with a data sheet in iec 60064 are a50 a55 a67 a68 a71 a75 and a80. Comparison between a15 a17 a19 a21 a23 light bulbs by their dimension.

Incandescent bulbs used to be the industry standard but laws now require new energy efficient standards for basic light bulbs. 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. Light bulb socket sizes chart. 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. Many specialty incandescent bulbs such as chandelier bulbs will remain available. 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. You can compare most common e size designations with a thread diameter see the specific light bulb name for that size see what are the most common applications and even see the official standard for light bulbs.

The most commonly used a series light bulb type is an a19 bulb or its metric iec equivalent the a60 bulb which is 19 8 in 2 3 8 in. To help you understand what shapes and sizes you will need we have created the following guide on light bulb sizes. 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. 1 888 455 2800 fax 1 508 363 2900.