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 uk.
Bulbs with a higher kelvin value produce a cool blue light that s more energising.
However we have listed the 8 most common and used bulbs for you and the type of lamps they are most suitable for.
Caps provide the electrical contact to conduct electricity to the light bulb but it also helps to secure the light bulb into its fitting.
Edison screw caps are also known as es they are more common in america and europe but are becoming more popular in the uk with outdoor lights and european brands of light fittings.
Apart from the difference in cap types the e27 is identical to the b22.
For example the colour temperature of candlelight is around 2000k while bright sunlight is about 6000k.
Leds are far more cost effective saving you up to 240 a year while halogens produce more heat and use 85 more power.
Led bulbs can last up to 25 years far longer than halogen bulbs which may need replacing after 1 year of use.
Led light bulbs will soon be the only type of bulb that you can buy in the uk.
These light bulbs are commonly available with both bayonet b22 and screw e27 e14 base types and have a wide variety of applications.
Known as e27 as they have a screw in cap with a 27mm diameter.
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.
Because standard screw or e27 is the most common this fitting will give you the greatest range of light bulb options.
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.
There are more than 100 different bulb fittings for lamps.
The part of the lamp or light bulb that connects into the light fitting is generally known either as the cap or base.
A series light bulbs are the classic shape most people think of when they imagine a light bulb.
The table below shows the more popular of these fittings.
A series bulbs are also known as arbitrary general lamp service gls or standard bulbs.
However we stock lamps in many other sizes and types including gy9 5 g22 and gx38q.
Led lights have a colour temperature between 2700 and 3000k halogen around 2800k and energy saving lights between 2700 and 6500k.
But for domestic use neither type has a significant technical advantage.
Bulb types that start with e are screw fittings and those that start with gu are click fittings.
Gu10 fittings are distinctive by their twist and lock fitting action and are common in domestic applications.