Incandescent is about to exit the stage of history on the LED lamp high hopes

The end of the incandescent lamp. Edison invented the lighting technology, has served for more than 130 years, has not changed much, it is time to withdraw from the stage of history.

Whether it is the European Union, the United States or China, are introduced in the elimination of incandescent roadmap. According to the roadmap Chinese, from October 1, 2012 onwards, a total ban on incandescent lamps more than 100W sales and imports; after 4 years, the incandescent lamp, in turn out different power until 2016, incandescent lamp above 15W completely exit lighting market.

Lighting revolution

The industry view, the development of a new generation of lighting technology war has started, LED lights is the trend of the whole industry are competing for the commanding heights of LED technology.

According to a survey of the 700 construction contractors of America ELectrical Contractor Journal of electrical, electrical contractors 33% that LED is ready to replace the incandescent lamp, 23% contractors said LED will be ready to replace the compact fluorescent lamp (CFLs), and 19% of the respondents said the LED will replace the fluorescent lamp.

LED is the abbreviation of light emitting diode, in essence, it is a solid-state semiconductor device, can directly convert electricity into light. As early as the last century in 60s, Ge Corp invented the LED. 70s, the first to take the lead in the red LED small calculator and electronic watches are widely used. Blue, red, green and other colors in the next few decades LED debut, for the indicator lights, lights, displays, landscape lighting. But they are not able to play a role in everyone's living room, until after the 1996 white LED was developed, LED technology began to cause changes in the field of home lighting.

Compared to incandescent tungsten filament fluorescent lamp, three color light, LED light emitting efficiency by electric field, it can be quite high, about 25%-40% of the electrical energy into light, and the incandescent lamp can only be less than 10% of the electrical energy into light, the rest are converted into heat energy waste.

In Chinese, the entire lighting consumes about 12% of the electricity consumption, improve electricity for lighting is an important way of saving energy, the key is to improve the lighting energy saving electric energy into light efficiency and reduce the lamp itself loss, taking into account the climate change and energy shortage in the background, LED lamp can certainly attract worldwide attention -- the same light effect under LED light than incandescent lamp energy saving 80%.

As a new generation of green lighting light source, LED light source in addition to environmental protection, energy saving, its service life is very long, up to tens of thousands of hours, 10 times longer than the traditional light source life. Compared with the traditional light bulb, LED light is more close to natural light, in this light, the color of the object can be closer to its natural color.

The LED light source, which is led by the electron motion, has no ultraviolet ray and infrared ray in the spectrum, and therefore, there is no flash frequency and radiation.

"Energy-saving lamps" retreat

Before the application of LED technology in the lighting, the industry has developed a variety of energy-saving lamps, fluorescent lamps, which is one of the leaders, especially the advent of compact fluorescent lamps, was once a new hope to replace incandescent lamps.

In 1990s, energy crisis, consumers began to welcome the energy-saving lighting technology, compared with the ordinary incandescent lamp, compact fluorescent lamp can save about 60% of energy, it has also been known as energy-saving lamps.

Although it's more expensive than the traditional incandescent lamp, a 25W incandescent light bulb prices in the 2-3 yuan, while the same energy-saving lamp light effect of the 10W price is about 12 yuan, but the government subsidies and saving electricity, so that consumers to energy-saving lamps. 2010, China's Ministry of finance to provide 600 million yuan subsidy to promote energy-saving lamps of 120 million, is expected to save electricity of 6 billion 200 million kilowatts. For two consecutive years, the Wuhan municipal government has provided subsidies to the public to provide half price energy-saving lamps. In addition to the government in a large number of public facilities in the use of energy-saving lamps, the U.S. government is free of charge to the public from time to time to distribute energy-saving bulbs.

Since entering the new century, fluorescent lamp and incandescent lamp to meet as equals. The total output of compact fluorescent lamps in the world has exceeded 4 billion in 2008.

But now it seems that the fluorescent lamp is just a transitional product, "connection" magazine even think that the compact fluorescent lamp flicker, environmental pollution, ugly, not strong enough, as a future source, they have lost.

Indeed, the brightness of fluorescent lamp can not adjust the light time, every second of the stroboscopic 100-125 easier to damage the eyes. In addition, the fluorescent lamp in the switch between the best interval of ten minutes, otherwise, it will shorten the useful life - which is obviously not suitable for home lighting frequently switch every day. Also, its relatively large size, appearance is not pretty.

However, it is the most deadly defect - containing mercury, fluorescent lamp light-emitting principle is the use of mercury vapor discharge is generated in the voltage produced by the action of ultraviolet, UV and fluorescent material in the lamp tube emits a lot of visible light.

And so far, there is no substitute for mercury. Taking into account the fluorescent lamp fragile glass, once broken, will cause harm to the human body, air, soil, water. You know, an energy-saving lamp tube containing an average of 0.5 mg of mercury, once into the ground may cause pollution of water of 180 tons.

China's energy-saving lamp recycling situation is not optimistic. Before the introduction of garbage classification rules, in addition to a handful of Swedish IKEA and other small stores, even in many sales