Solar energy and LED

It is said that the flashlight, flashlight special power, in normal use frequency, with 3 in the first half of 7 ordinary batteries, because it uses a LED light source. LED is the abbreviation of light-emitting diode, its basic structure is an electroluminescent semiconductor material placed on a lead frame, and then surrounded by epoxy resin sealed, to protect the role of the internal chip.

In early 1907, it was found that the semiconductor material of electroluminescence phenomenon, but the real commercial LED is the last century in 60s, was only red, and the luminous efficiency is very low, the real impact of the development of the LED industry high brightness white LED in 1997. Energy saving, environmental protection and long life is different from the traditional LED incandescent lamp three advantages, LED is known as "cold" light, it does not depend on the heating filament to emit light, the energy conversion efficiency is very high, the theory can only incandescent lamp energy of 1/10, compared with the ordinary fluorescent lamps to energy-saving 1/2.

Now almost every power we side lights, lighting instruments almost are occupied by LED, walking in the street, red light bright colors have benefited from it, many communication equipment are used LED as a light source and display device. At present, more than 80%% of cars in Europe using the LED as lighting, especially in the application of high brake lights, it's faster than the incandescent lamp, the driver for the car to provide more than 0.3 seconds of reaction time.

The characteristics of energy saving and long life of the mentioned, the innate advantage of LED makes it become a heaven-made match with the solar battery, solar LED lamp has high social and economic benefits. "Solar LED lighting Queqiao meet" after 40%% can be reduced under the same conditions of solar cell and battery capacity, light source life increased 10 times, 5 times the reliability of the system, reduce the cost of more than 40%%. If you observe in the street, the use of the Yellow unattended intersection of solar panels (red) lights, solar LED lights is a typical application of free maintenance, environmental protection and energy saving, high reliability, provides the best protection for traffic safety. Also, as a permanent runway edge lighting, garden lights and so on, it not only greatly reduce the use cost, and maintenance free, the most important thing is to solve due to centralized power blackouts plagued. With the development of device level, some new applications have been developed. The use of special wavelengths of ultraviolet LED, agricultural pesticides have a new approach; the special wavelength ultraviolet LED implanted in specific parts of the human body, for cancer cells to achieve therapeutic effect, the medical field is also the direction of LED.