The letters tend to stand for the name of the fitting and the numbers are the diameter of the fitting in millimeters.
Light bulb fitting types.
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Edison screw caps take their name from the inventor of the light bulb thomas edison and are universally used for a range of applications.
The table below shows the most popular caps but other less common types are available including e11 e17 e26 and e39.
Caps provide the electrical contact to conduct electricity to the light bulb but it also helps to secure the light bulb into its fitting.
Vintage and decorative bulbs are perfect for adding a bit of style to your room décor.
What are the different types of light bulb fittings caps and bases.
For wall and ceiling lights with a fixed lamp holder it s important that the lamp holder is compatible with the type of bulb you want to use.
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 cap or base of a light bulb joins the bulb to the lamp socket in order to provide an electrical connection.
Different types of led bulbs can be used in table lamps pendant lights ceiling fans wall sconces and other lighting fixtures.
However we have listed the 8 most common and used bulbs for you and the type of lamps they are most suitable for.
Your lamp or fixture s socket will dictate which cap or base a light bulb needs in order to fit but there are a number of different base types and sizes to choose from and it s not always easy to determine which type is right for your fixture.
For example an e27 is an edison screw bulb with a diameter of 27 millimeters.
These types of light bulbs fit a variety of fixtures.
Their brightness is measured in lumens instead of watts.
All light bulbs have a code to identify their type of fitting.
The part of the lamp or light bulb that connects into the light fitting is generally known either as the cap or base.
Led light bulbs often require more upfront investment but they are also more energy efficient.
There are more than 100 different bulb fittings for lamps.
Light bulbs are available in a variety of shapes and bases to fit your needs.
Types of lamp fittings.
Most light fittings or luminaires have a lamp holder.
Different light bulb fittings at a glance.