Bulb Base Types Chart

Bulbs with these base types are available in many different styles.

Bulb base types chart.

There are dozens of base types for light bulbs most of them made up of a series of letters and numbers. Types of light bulb bases find the light bulb you need using this visual light bulb base chart and detailed illustrations of general light bulb bases fluorescent bases and specialty halogen base types. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. Light bulbs for automobiles are made in several standardized series.

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. Medium standard base code. About light bulb base types. It is used in most incandescent nostalgic led cfl and halogen light bulbs.

Click on any of the base illustrations above to see a list of light bulbs that have that base. Look at your fixture to determine its base type. 3 illustrated charts showcase the 56 different types of light bulbs based on shape base and size. Bulb base reference chart.

There are tens of unique bases for light bulbs. 1 888 455 2800 fax 1 508 363 2900. The bulb is a type and the diameter would be 2 3 8 a 120br40 is a 120 watt reflector 5 in diameter. Bulbs with these bases are the most popular of all screw base bulbs.

The intermediate e17 base is not very common. Click here to save and print what is the difference between light bulb bases. 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. The most commonly used household bulb is the a 19.

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 most common bulb base in the us is the screw medium e26 base. Pin type bases are normally used for track lighting landscape bulbs. This is an epic light bulb buying guide that you need when putting in light fixtures or you need to buy a bulb.

Look at your fixture to determine its base type. The candelabra e12 base is the second most common bulb base which is used for smaller decorative incandescent nostalgic bulbs. The most familiar is the edison screw base found on most.