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