2012年8月4日星期六

lighting market mainstream products - white LED lighting


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In many cases, the LED higher efficiency can reduce power consumption by up to 88%. They also greatly reduce the power generation and transmission of electrical energy for lighting caused by carbon dioxide emissions. T he StrategiesUnlimited the company\\ s research, to 2012, total high-brightness white LED lighting market is expected to exceed 50 billion U.S. dollars, and corresponds to 28% in 2009-2012 compound annual growth rate (CAGR). This is just the beginning, because of the commercial / residential lighting market from incandescent, fluorescent and high pressure sodium, high-brightness white LED at the same time continue to accelerate the improvement of LED luminescence efficiency, LED from a commercial point of view, even become more has cost-effectiveness.

According to some calculations, the shift from the traditional incandescent and fluorescent to LED lighting to enable the current global total energy consumption savings of up to 10%. With the accelerated efforts to reduce carbon dioxide emissions from electricity generation, the global lighting energy demand is reduced by 10% of the potential plays a great role in promoting this shift.

What factors suppor t such a huge potential for growth? First of all, this generation of LED luminous efficiency than incandescent, 10 times higher, is more than twice the fluorescent lamps and high pressure sodium (HPS), which greatly reduces the power to provide the required light output (lumens measure) necessary. With the further development of the LED, they rely on the power light-emitting efficiency will continue to improve, and is expected to double within the next few years.

Secondly, in a very environmentally conscious world, led high bay lighting lighting does not require processing, contact and clear toxic mercury vapor in fluorescent lamps. Today, the cold cathode fluorescent lamp (CCFL) for most residential lighting systems containing up to 5mg of mercury, more lights contain mercury much more!

Third, the incandescent lamp every 1,000 hours need to be replaced, while the fluorescent sustainab le use of up to 10,000 hours, compared to the life of LEDs over 100,000 hours. In most applications, this enables the LED to be permanently embedded into the final application being without the need for attachment.

Examples include indoor and outdoor commercial and residential lighting, such as street lights, indoor and outdoor industrial lighting, such as power plants and refineries, and other lighting in hazardous environments. 24 hours of uninterrupted operation of some applications (such as refineries), LED will last up to 11 years, which means they will not require replacement. In addition, LED than several other types of lighting, small and flat-position can be manufactured to very flat form factor, so they can be permanently placed in the internal and external applications.

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The small size of the LED reflector placed LED housing to be able to produce more sophisticated, and th us more efficient to focus the light. White LED provides pure \"full spectrum\" white light, there is no gap in the chromatography, which need reliable visual acuity task, you can very easily see. For example, view color-coded wire to read the color mark or distinguish between water vapor and flame caused by smoke. On the contrary, orange high pressure sodium lighting environment to accomplish the same task may be difficult, because in this lighting environment can not accurately distinguish between colors.

With the human eye to notice such a change compared to the LED also much faster dimming and on / off, which greatly reduces power consumption. LED lighting dimming or disconnect the instant-on, until they are needed, to maximum intensity, fluorescent or high pressure sodium lamps up to 30 seconds or longer to achieve the maximum intensity.

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