The most popular ES or E27 fitting is 27mm diameter and is widely used in UK and Europe. This cap is the standard 27mm diameter screw cap for UK 240V light bulbs – not to be confused with E26, which is a 26mm size and is designed for the 120V US market.

How do I know what fitting my bulb is?

All light bulbs have a code to identify their type of fitting. The letters tend to stand for the name of the fitting and the numbers are the diameter of the fitting in millimetres. For example, an E27 is an Edison Screw bulb with a diameter of 27 millimetres.

How do I know what light bulb I need UK?





1. Determine what fitting or cap type you need

  1. Bayonet. Bayonet bases are the most common base type in the UK. …
  2. Screw. Screw bases are also known as “Edison” bases, which is why they are labelled using the letter “E”. …
  3. Pins or Pegs. These bases feature two narrow pins or pegs.

What light bulbs are used in the UK?

What types of bulbs do you have?

  • Traditional light bulbs in bayonet (E27) or screw-in (E14), both large and small fittings.
  • Incandescent bulbs which produce more heat than light and are being phased out.
  • Halogen bulbs which are 20% more efficient than incandescent bulbs.

Are E27 bulbs screw or bayonet?

The most commonly used screw cap bulb is the E27, which fits most standard light fittings in the UK. There are also smaller versions (E14 and miniature E10s), which have a thinner screw base and are most commonly used for decorative lighting, i.e. candle-shaped bulbs for chandeliers.

What is E27 and B22?





B22 & E27 LED Globes
The B22 and Edison E27 LED light globes (see figure below) are a replacement for those bulbs typically seen in pendant style lights or desk and bedside lamps and other older style lighting fixtures that take the traditional incandescent lights.

What is E27 bulb fitting?

E27 bulb. E27 is probably one of the most common and used bulb in lamps and it is sometimes referred to as Edison large screw. E27 bulbs come in incandescent, CFL, halogen and LED fittings. The bulb has a 27mm screw cap which is what is fitted into a lamp, it is suitable for 230/240V.

How do I know if my bulb is E27?

Measuring the Base
Light bulb base measurements will be labelled using a code similar to the one used for the bulb. For example, a standard light bulb base is an E27, which means that the base is an Edison screw base that measures 27mm. Screw and bayonet bases are measured right across the bottom.

What does an E27 bulb look like?

E27 bulbs, often referred to a ES bulbs which is an acronym for Edison-screw, have a threaded base for use with compatible screw in fixtures. The base of an E27 light bulb is 27mm wide and is a popular fitting in a range of domestic settings for lamps and feature lights.

Is E27 a standard bulb?



E26/E27 Medium – Edison 26-mm or 27-mm Diameter
Bulbs with these bases are the most popular of all screw base bulbs. They are commonly used for general lighting in standard light fixtures, such as ceiling lights, lamps, can lights, outdoor spotlight and flood light fixtures, and vanity lights.

Can I use E27 bulb in B22 socket?

Features: Allow You Install E26/E27 Medium Edison Bulb into B22 Socket, Screw E27 Bulbs are widely used and cheaper! Suitable for Halogen, Incandescent, CFL,LED bulb.

Can B22 fit into E27?

E27 is wider. Show activity on this post. DO NOT USE A B22 TO E27 CONVERTER!!! You can put a bayonet bulb in either way and it still works because the two pins are underneath.

Is B22 a standard bayonet fitting?



B22 bulbs have the classic bayonet base fitting, which features two ‘mounts’ on either side of the bulb. This is also known as a ‘standard’ bayonet fitting and is the most common in the UK. Make sure you don’t get confused with B15 bayonet fittings that are smaller and less common.

What are the 4 types of light bulbs?

Navigating
But lighting has so many variables—brightness, color, temperature, energy efficiency, dimmability—that choosing light bulbs can be confusing. There are four different types of light bulbs available for residential use: incandescent, halogen, fluorescent, and LED.

What wattage should a bedroom be?

For a bedroom, look for a light bulb that has a lumen rating of around 800, which is roughly equivalent to a 60-watt traditional incandescent bulb, or lower. At this brightness level, you’ll have enough light to read by, but it won’t make you feel more alert when you’re winding down at bedtime.

Do all light bulbs fit?

You can use any type of bulb for electric lights – LED light bulbs, incandescent light bulbs, fluorescent light bulbs, and so on. All light bulbs are designed to be powered by electricity.

What size is the base of a standard light bulb?



26 mm

Medium or Standard: E26 (26 mm in diameter) is the size of the majority of light bulbs used in the United States.

Are all light bulbs universal?

Numbers in a bulb code indicate size in millimeters or eighths of an inch. These codes will tell you if a bulb will fit in your fixture and if it’s the right shape. For every light fixture or application, there’s going to be a specific bulb or light bulb shape that will fit best and provide the right type of light.

What is the most common light bulb size?

The most commonly used household bulb is the A-19. The bulb is “A” type and the diameter would be 2 3/8″ A 120BR40 is a 120-watt reflector 5″ in diameter.