What Size Base Does A Regular Light Bulb Have

The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters.

What size base does a regular light bulb have. Globe g bulbs have a full round shape and are available in various sizes. It s referred to as having a medium or standard base. The most common light bulb base types are. Many specialty incandescent bulbs such as chandelier bulbs will remain available.

Bulb base the final important piece to selecting the right bulb for your application is the bulb base. It s used for nightlight bulbs and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors. G14 led bulbs in ceiling light fixture g30 led bulbs in bathroom vanity g30 led filament bulb in porch light fixture g16 gold tint led filament bulbs in ceiling light fixture. A further explanation of the light bulb base sizes you can look at the letter number references e12 e17 and e26 to help understand a bulbs base style and size.

In some older light bulb catalogs bases are referred to as caps. You don t want to buy a bulb only to find that it doesn t fit in the socket. If you do not see the base type you are looking for give us a call at 800 784 1998 and we can help you locate the correct bulb. Click on any of the illustrations to view a list of bulbs with that light bulb base.

For example an a19 bulb means that that the bulb comes in a standard household shape and is 19 8 inches in size. A19 bulbs are the most common light bulb shape so this is what you ll see the most. All standard 100 75 60 and 40 watt incandescent bulbs have been phased out and will no longer be produced. E26 is the size of most light bulbs used in the u s.

E12 is the smaller candelabra base. The e in the light bulb size refers to edison the inventor of the screw base light bulb and screw base light bulbs are sometimes called edison light bulbs. From top left to bottom right. Bulbs with these bases can be used interchangeably as there is only a 1 millimeter difference in base size.

These powerful bulbs have high light output and are used to replace hid bulbs in industrial fixtures such as high bay warehouse lights parking lot lights canopy lights and wall packs. Unlike the light bulb shapes the number in the light bulb base measures the light bulb base diameter in millimeters. 1 888 455 2800 fax 1 508 363 2900. E17 intermediate base is in between these two sizes.

Incandescent bulbs used to be the industry standard but laws now require new energy efficient standards for basic light bulbs.