LED (Light-Emitting Diode) bulbs are made up of many small electrical components (LEDs), which are tiny bulbs that are made from a material described as a semiconductor. A semiconductor is a material that is made up of a positively charged and a negatively charged component. The positively charged component is made up of holes- for the electrons to fit through- and the negatively charged component is made up of free electrons. When an electric charge strikes the semiconductor, it stimulates a flow of electrons from the negative component to the positive component. The emission of light occurs when the electrons from the negatively charged component flow in to the positively charged component.

LEDs therefore create light through the process of electroluminescence- the phenomenon of a material emitting light when an electric current is passed through it. When a current passes through the LED, it glows with very little energy expenditure. The result is a highly efficient light source, emitted in a very narrow band of wavelengths, increasing the efficiency of the light source.

LEDs are in principle tiny light bulbs that fit easily into an electrical circuit within the light fitting frame. Unlike ordinary incandescent bulbs, they don't have a filament that will burn out, and they don't get especially hot. This is particularly useful when small children are around who are likely to touch the bulb when they are on.


Here at LED Bulb Centre, we have a great selection of LED light bulbs and bases. We have most of our LED bulbs available in dimmable versions, and have lighting for the home and for outdoors. Our range of dimmable bulbs and LED downlighters give a sure advantage when attempting to create ambient lighting. If you have any queries as to how LED light bulbs work, please do not hesitate to get in touch on 0800 292 2880 Monday to Friday 9am-5pm.