A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode, which emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence, and the colour of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor.
In other words: A light-emitting diode (LED) is a semiconductor that emits light when an electric current passes through it.
The advantages of LED compared with incandescent and lighting technologies like energy saving lamps, include:
Filament is the latest technology in LED lighting. It combines all the advantages of LED with the look and feel of a traditional incandescent lamp. At NEDIS we like to call it retro LED. We already offer an assortment of filament LED from different brands and in many shapes and sizes.