The LED is an electronic component that the passage of a small current, emits no infrared and ultraviolet light, (which is why it does not attract most species of insects are sensitive to ultraviolet light), lighting up immediately.
The LED (Light-Emitting Diodes) represents the evolution of solid state, in which the generation of light is obtained by means of semiconductors, rather than using a filament or a gas. LED lighting is more efficient in terms of energy, lasts longer and is more sustainable. It also allows innovative and creative solutions that integrate the use of light in our homes, in cars, in shops and in the cities.
Until the second half of the 90 LEDs were designed only for signaling and isolation of signals. By the time it was understood that the use of LED could go further: in fact could be used for lighting.
Some of the leading manufacturers of high-power LED range are: Seoul Semiconductor, Nichia, Cree, Osram Opto Semiconductor, Philips (Luxeon) …
The evolution of the component (this is in fact the recent birth of white LED was born from the merger of dust Led Blue, the Red LED and Green LED) it has come to obtain high efficiency in brightness, allowing them to brighten, with low power committed, industrial and civil environments. The LEDs are intended, over time, to gradually replace the traditional incandescent lamps and fluorescent lamps.
The LEDs are very versatile and can be switched on and adjusted with relative ease, fit thanks to its small dimensions, and different technologies, to illuminate areas and places where it would not be feasible with traditional technologies.