An Edison bulb holder (also called an E27 bulb holder ) is one of the most common types of lamp holders used worldwide. It's a screw-type fitting originally designed by Thomas Edison and now found in many household and commercial lamps.
Features of an Edison fitting (E27):
- Screw fitting : The E27 has a screw thread, so that the bulb can easily be screwed into a fixture.
- Diameter : The number "27" refers to the diameter of the fitting, which is 27 millimeters .
- Commonly used lamps : This fitting is used for various types of lamps, such as incandescent lamps, LED lamps, halogen lamps, and energy-saving lamps .
- Voltage : The E27 fitting is usually used for lamps that operate on 230V in households, although there are also variants for other voltages.
Applications of Edison fittings:
- In homes : In most ceiling lights, table lamps, wall lights and other lighting applications.
- In commercial and industrial environments : Commonly used luminaires in workspaces, warehouses and offices.
Why choose an Edison fitting?
- Compatibility : The E27 is one of the most commonly used fittings and therefore there are many different lamps available that you can use in this fitting.
- Easy to Use : The screw fitting makes it easy to replace the bulb without any hassle.
- Availability : Because it is such a popular standard, E27 bulbs and fixtures are often easier to find and less expensive.
Other Edison fittings:
- E14 : Smaller version of the E27, often used for candle lamps and smaller fixtures .
- E40 : Larger fitting, often used for industrial lighting or large lamps .