What Base Is A Regular Light Bulb

The most common light bulb base types are.

What base is a regular light bulb.

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. Today light bulb manufacturers have managed to make cfl bulbs with a wider range of light quality and many of them are indistinguishable from traditional incandescent light bulbs. The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters. Cfl bulbs last much longer than incandescent light bulbs and they also use a lot less energy than traditional incandescent light bulbs.

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 candelabra bases are mostly used in smaller decorative incandescent cfl and ccfl light bulbs. Screw bases 10mm miniature screw e10 11mm miniature candelabra e11 12mm candelabra e12 14mm european e14 17mm intermediate e17 26mm medium e26 27mm european medium e27 39mm mogul e39. Candelabra a smaller screw in base denoted most often with an e12. 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 vanity lights.

Standard medium a regular sized screw in base usually denoted with an e26 or e27. Incandescent bulbs used to be the industry standard but laws now require new energy efficient standards for basic light bulbs. 1 888 455 2800 fax 1 508 363 2900. Conical c bulbs are shaped like a cone.

It is found on smaller light bulb. The intermediate e17 base is not very common. It has a pear like shape and is typically fitted to either an edison screw or a bayonet cap base. Bi pin a pin in base with two points of contact often denoted by a g4 or gu24.

From top left to bottom right. Click or tap on a base to view matching bulbs from our catalog. Light bulb base chart. What are the different light bulb bases.

Bulbs with these bases are the most popular of all screw base bulbs. B10 led bulbs in wall sconce ca10 led bulbs in chandelier c9 led bulbs in christmas light strings c7 led bulb in night light. Gu10 a twist. The number that follows the a designation indicates the nominal major diameter of the bulb either in one eighth.

All standard 100 75 60 and 40 watt incandescent bulbs have been phased out and will no longer be produced. The a series light bulb is the classic glass light bulb shape that has been the most commonly used type for general lighting service gls applications since the early 20th century.