The cap or base provides an electrical connection to the lamp and ensures the lamp is held in the correct position.
Different types of light bulb connections.
Types of light bulbs illustrated chart types of light bulb bases.
Twist lock bases.
Some offer energy savings such as led bulbs.
Light bulb base chart.
For example some miniature lamps have wire leads suitable for direct connection to screw terminals or other wires and some reflector lamps provide screw terminals for electrical connections.
The common terms are medium intermediate candelabra and mogul.
The most familiar is the edison screw base found on most incandescent bulbs and many halogen compact fluorescent hid and now led bulbs.
Not all lamps require a socket.
The bulbs are available in different sizes including gls globe candies mushroom.
If you can not find the type you are looking for or have any further questions please do not hesitate to call.
Other such as the common incandescent light bulbs can be easier on the wallet.
However because the light industry likes mysterious codes you may also see e26 e12 e39 etc.
Below we have listed the most popular fittings.
However the sudden flow of current causes the filament to heat and burn out.
There are hundreds of unique bases for light bulbs.
Traditional straight fluorescent bulbs use a turn type connector whose internal metal clips contact two pins at each end of the bulb.
The photo above is of a t8 type lamp being held in the position to insert the lamp into the socket holder.
E obviously is for edison.
The electrical industry refers to these as bi pin bulbs and bi pin sockets.
10mm miniature screw e10 11mm miniature candelabra e11 12mm candelabra e12 14mm european e14 17mm intermediate e17 26mm.
It is essential to know the cap type to identify the lamp.
Caps provide the electrical contact to conduct electricity to the light bulb but it also helps to secure the light bulb into its fitting.
Different types of light bulbs work and look best in different types of light fixures.
Decoding edison bulb base types.
Here we describe the different types of fluorescent lamps or bulbs by size shape connector wattage color temperature and other features.
Fluorescent lamps typically require a two pin unthreaded socket.
This article series explains how to diagnose the causes of flickering dim or dead fluorescent lights at or in buildings.
What are the different types of light bulb fittings caps and bases.
These small bulbs have a base of 10 mm and are great for lanterns flashlights and decorative optical.