Look at your fixture to determine its base type.
Most common light bulb base.
The intermediate e17 base is not very common.
It has a medium or standard 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.
40 8 5 diameter.
The e26 has a diameter of 26mm 1 inch which makes it the perfect choice.
Numbers in each code refer to the bulb s diameter in one eighths of an inch.
The r stands for reflector.
20 8 2 1 2 diameter.
The most familiar is the edison screw base found on most incandescent bulbs and many halogen compact fluorescent hid and now led bulbs.
It is used in most incandescent halogen cfl ccfl and hid light bulbs.
The edison screw in base is universally recognized as the light bulb base.
The mogul e39 base is found in larger sized light bulbs such as high wattage hid.
The medium e26 base is the most common light bulb base.
The number after the e represents the diameter of the base in millimeters.
Pin type bases are normally used for track lighting landscape bulbs.
The common terms are medium intermediate candelabra and mogul.
In north america and europe these light bulb base types are the most common and widely used.
For each of these types the bulb light is produced by a different process.
Light bulbs can also be distinguished by shape and base design.
Screw base bulbs often called edison bulbs are named after their inventor thomas edison.
Medium standard base code.
Here are the most common bulb bases.
Br20 bulbs are often referred to as r20 but have the same characteristics of other br bulb types.
The most common bases everyone is familiar with start with an e signifying edison type screw bases.
The most common types of light bulbs are incandescent bulbs halogen bulbs cfl bulbs and led bulbs.
Look at your fixture to determine its base type.
It is one of the most typical light bulb sizes.
It is found on smaller light bulb shapes such as s11 r12 and t6 light bulbs.
Most common base type.
However because the light industry likes mysterious codes you may also see e26 e12 e39 etc.
Click on any of the base illustrations above to see a list of light bulbs that have that base.
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.
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.
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.
E26 base the e26 base is a popular choice among the public.
