Most Common Light Bulb Base

Find the light bulb base type you re looking for with this visual chart detailed illustrations of general bases fluorescent bases and specialty halogen base types.

Most common light bulb base.

The edison screw in base is universally recognized as the light bulb base. Each base type has a descriptive term such as medium intermediate candelabra etc and they re defined by the letter e edison followed by numbers. For each of these types the bulb light is produced by a different process. Light bulbs for automobiles are made in several standardized series.

The most common bases everyone is familiar with start with an e signifying edison type screw bases. Numbers in each code refer to the bulb s diameter in one eighths of an inch. Screw base bulbs often called edison bulbs are named after their inventor thomas edison. Most common base type.

The most familiar is the edison screw base found on most incandescent bulbs and many halogen compact fluorescent hid and now led bulbs. 40 8 5 diameter. 30 8 3 3 4 diameter. Most common light bulb uses including lamps recessed flush mount flood lights are going to have one of the first three base types shown above.

The most common types of light bulbs are incandescent bulbs halogen bulbs cfl bulbs and led bulbs. The intermediate e17 base is not very common. It has a medium or standard base. However because the light industry likes mysterious codes you may also see e26 e12 e39 etc.

Here are the most common bulb bases. There are tens of unique bases for light bulbs. Click on any of the base illustrations above to see a list of light bulbs that have that base. It is one of the most typical light bulb sizes.

It is used in most incandescent halogen cfl ccfl and hid light bulbs. The medium e26 base is the most common light bulb base. The e26 has a diameter of 26mm 1 inch which makes it the perfect choice. 20 8 2 1 2 diameter.

In north america and europe these light bulb base types are the most common and widely used. The mogul e39 base is found in larger sized light bulbs such as high wattage hid. The r stands for reflector. Pin type bases are normally used for track lighting landscape bulbs.

It is found on smaller light bulb shapes such as s11 r12 and t6 light bulbs. Bulbs used for headlamps turn signals and brake lamps may be required to comply with international and national regulations governing the types of lamps used other automotive lighting applications such as auxiliary lamps or interior lighting may not be regulated but common types are used by many automotive manufacturers. The common terms are medium intermediate candelabra and mogul. Medium standard base code.

The number after the e represents the diameter of the base in millimeters. Look at your fixture to determine its base type. Br20 bulbs are often referred to as r20 but have the same characteristics of other br bulb types.