White LED Lamp

Emitting diodes (LED) lighting are full technological and economic development sources. Used for many years in electronics as a source of monochromatic light of low intensity applications of LEDs, they now find their place in lighting systems in their own right.

The first visible spectrum LED, emitting extremely low light intensity, was created in 1962. The blue LED was invented in 1990, followed by the development of white LED, paving the way for major new applications, including in the field of lighting and TV screens and computers. The first white LEDs have gradually appeared on the market and are now more powerful (a few watts to tens of watts). To produce white light, the most common method couples a blue LED yellow phosphorus.

Although less common than other types of lamps, LED lamp "white" is spreading, thanks to the advantages it offers compared to conventional bulbs or compared to other LED lamps. The white LED lamp is a type of lamp that can be found on the Internet as well as in supermarkets.

The production of LED lamp white light began in the 90s. Difference with the red LED light comes from the fact that the white LED produces light, "white" light reflection.

Materials used

Indeed, the white LED is composed of a combination of a material with a phosphorescent light emitting material.

Electroluminescent material most often used is the InGaN (gallium nitride and indium). This material produces a blue light reflection phenomenon by which the phosphorus-based material, provides a white light. White light is used today in many varied fields.

A considerable advantage of the white LED lamp compared, the usual incandescent lamps is its low power consumption.

In addition, their manufacturing process, they have a low volume, and are less fragile than other lamps. The life of LED white LED lamps is also a major advantage, since its longevity is about 10 years.

Unlike other lamps, lightings and repetitive extinctions have no influence on their life.

Increasingly common, these powerful and bright lights have their usefulness, car lighting, in signaling, but also in the design of some flat screens (screens LEDs) lamps or conventional lighting.