What Is A Standard Size Light Bulb

Comparison between a15 a17 a19 a21 a23 light bulbs by their dimension.

What is a standard size light bulb.

Many specialty incandescent bulbs such as chandelier bulbs will remain available. 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. 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.

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. A19 led filament bulbs in ceiling fan fixture a21 led bulbs in bedroom lamps a19 gold tint led filament bulb in porch light fixture a19 led fireworks bulbs in string lights. All standard 100 75 60 and 40 watt incandescent bulbs have been phased out and will no longer be produced. Light bulb socket sizes chart.

60 mm wide at its widest point and approximately 4 3 8 inches 110 mm in length. This is the classic shape that most people are used to when shopping for a light bulb. From top left to bottom right. To help you understand what shapes and sizes you will need we have created the following guide on light bulb sizes.

1 888 455 2800 fax 1 508 363 2900. Standard arbitrary a bulbs are the most widely used and thought of when it comes to household lighting. 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.

1 888 455 2800 fax 1 508 363 2900. Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be. 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. Bulbs with these bases are the most popular of all screw base bulbs.