Light Bulb Fitting Types

The cap or base of a light bulb joins the bulb to the lamp socket in order to provide an electrical connection.

Light bulb fitting types.

Bulb types that start with e are screw fittings and those that start with gu are click fittings. For example an e27 is an edison screw bulb with a diameter of 27 millimeters. 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. 1 888 455 2800 fax 1 508 363 2900.

Light bulbs are available in a variety of shapes and bases to fit your needs. Caps provide the electrical contact to conduct electricity to the light bulb but it also helps to secure the light bulb into its fitting. All light bulbs have a code to identify their type of fitting. 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.

Led light bulbs often require more upfront investment but they are also more energy efficient. The letters tend to stand for the name of the fitting and the numbers are the diameter of the fitting in millimeters. Edison screw caps take their name from the inventor of the light bulb thomas edison and are universally used for a range of applications. Types of lamp fittings.

There are more than 100 different bulb fittings for lamps. They also use less electricity to produce the same amount of light as incandescent varieties. Vintage and decorative bulbs are perfect for adding a bit of style to your room décor. Different light bulb fittings at a glance.

What are the different types of light bulb fittings caps and bases. 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. The part of the lamp or light bulb that connects into the light fitting is generally known either as the cap or base. These types of light bulbs fit a variety of fixtures.

The table below shows the most popular caps but other less common types are available including e11 e17 e26 and e39. Most light fittings or luminaires have a lamp holder. Their brightness is measured in lumens instead of watts.