LED: optimistic look forward to the future calm face of regret

Semiconductor lighting (LED lighting), is a new generation of cold light up in 90s of last century, with the traditional source There is nothing comparable to this advantage: to save energy and protect the environment (do not contain mercury and other harmful substances), long life (50 thousand hours), reduce maintenance costs, provide better lighting quality, improved visual effect and safety of these, the application of LED technology has been more and more numerous in the infrastructure construction in the.

The energy crisis caused by the modern civilization of human beings warns us that energy saving and environmental protection are urgent, and the development and utilization of resources need sustainable development. Since 2003, most parts of the country have suffered a new round of power shortages. The situation of power shortage has promoted the development of electric power, but at the same time, it has caused us to think about alternative energy and new energy.

Policy support for efficient lighting products

Lighting energy consumption occupies a pivotal position in the entire power consumption, the U.S. Department of energy data show that 22% of U.S. electricity consumption in the field of lighting. Shanghai, for example, lighting electricity accounted for more than 1/3 of the city's electricity consumption in Shanghai, both energy saving and environmentally friendly lighting revolution imminent.

According to the survey, if the LED replace the lights on the Christmas tree, the United States in December each year at least 2 billion kwh of electricity, equivalent to a full year of electricity consumption of 2 million families. While the United States to achieve a comprehensive upgrading lighting, from 2012 to 2030, U.S. spending on the lighting energy consumption will save $40 billion, which would mean less built 14 thermal power plants and an annual reduction of at least 51 million tons of carbon emissions. And a series of corresponding measures are also being carried out like a raging fire: the United States plans in the next 12 years, the phasing out of incandescent lamp, lamp switch to new energy saving and environmental protection, new lighting than the current light bulbs at least saving 70%; the Australian government announced in 2010 a total ban on the use of incandescent lighting.

In January 21, 2008, the Ministry of finance, the national development and Reform Commission jointly issued the "Interim Measures" efficient lighting products to promote financial subsidies to fund management, focusing on efficient lighting products to replace incandescent lamps in use, and other inefficient lighting products. The focus of financial subsidies to support 5 kinds of efficient lighting products: self ballasted fluorescent lamps for general lighting (commonly known as energy-saving lamps), three color double straight tube fluorescent lamps (T8, T5), metal halide lamp, high-pressure sodium lamp, electric light source products, semiconductor lighting products and supporting the necessary ballast. In addition to energy saving, the advantages of LED lighting is the most do not contain mercury and other harmful metal material, instead of the traditional lighting can greatly reduce the pollution of mercury and lead on the environment. For the application of the backlight as an example, in 2008 the global personal computer shipments are expected to reach 296 million units (IDC, LED, forecast) if replace half the backlight, in each of the 1 CCFL (cold cathode fluorescent lamp), each 5mg mercury calculation, it will reduce the pollution of mercury 740kg, greatly reduce the environment pollution.

To sum up, in the field of lighting, the application of LED will be its green energy-saving performance, as the third revolution after the fire and incandescent lamp.