Applicable Occasions of Induction Light

Corridor LED Human Body Induction Lights

Traditional induction lights are installed in the corridor and generally are composed of two parts, the human body induction panel switch and the light source, the light source is incandescent, and the two separated in housing construction should well equip the line and position. Incandescent tungsten cannot withstand frequent switch, so every year you have to replace the broken lights, and the artificial maintenance costs are too high. LED body induction lights have built-in light source and the human body sensing device, you only need to install the screw into the general E27 base, then you can reach the body induction lamp. The lights open when people come near, and when people go, the lamp will be out. The installation placed between the corner and down the stairs can response to the upstairs and downstairs, in addition to that the induction light source life is long, low-voltage operation, so the frequent switches do not have impact on it. Now the residential buildings is not the same as the conventional single-family detached, high-rise buildings in the estate, and there were several dozens of families, LED human sensor lights installed in each floor public corridor is very appropriate, whenever the owners come back home, or come out from the elevator, the LED sensor light will be bright, in the 1-minute time delay, the owners have enough time to open their own door and into the house.

Balcony LED Human Body Induction Light

In the past, the balcony lighting is an incandescent lamp or ceiling light. The balcony belonging to the semi-outdoor, when open the lights at night, mosquitoes and flies will turn around the lights, and do not remember in life from time to time off the balcony lights. If LED Ceiling induction bulbs or the human body sensors light bulbs are installed in this position, these two issues can be resolved, LED is a cold light source, no ultraviolet, will not provoke mosquito, intelligent sensing body in the balcony during light lit people left the lamp, and it is power-saving and convenient.

The Toilets LED Human Body Sensor Lights

Maybe you may ask: Isn't the LED human sensor lights installed in the toilets not afraid to wet? Do not worry. The housing of the lamp body is plastic, LED lamp beads are not afraid of humidity as the light source. When people are in the toilet, the light is in the lit state, when people walk away, since they do not have to switch, so they completely no need to worry the wet hands risk of electric shock.

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The Industrial Characteristics of LED Products

The prices of mainstream products LED

Currently, the price of the 1W white LED with the luminous flux of 70 ~ 90lm in the market is basically maintained at 17 yuan, and the price of the domestic production of High Power LED is basically 5.50 yuan. Along with the rapid growth of its luminous efficiency of the power white LED applications upgrade, the single LED prices are expected to gradually be reduced.



Second, costs and the heat dissipation is still the biggest obstacle to replace the traditional lighting.

Lighting is the most attractive application field for LED, the cost is critical for the LED to replace traditional lighting. Relative to its exponentially in the service life of traditional lamps, the price of LED is not high, and can save the costs late replacement and maintenance, but the start-up costs are often subject to direct purchase budget. Mingxue Optoelectronic believes that the main bottleneck impacting the current LED applications lies in the lumens cost is 10 times more than traditional lighting source. So the light efficiency has to be improved to 150lm / W, and drive current is promoted from 700mA to 2A, at the same time the die and package cost will be reduced by half, which can obtain the popularization and application in the field of lighting to large-scale. The LED package is to integrate light and heat in a single device, and heating will bring the largest impact on the led power supply devices, if the lighting is alway in the case of the high-temperature, it will greatly affect the life of the lighting devices or fixtures, LED lighting package structure poses a severe challenge.

Third, the prospects of high-power LED domestic market is broad

Currently, landscape lighting market is the largest high-power LED lighting applications market and its share is about 43%. It's a new round of rapid growth is bound to bring a new impetus to the development of high-power LED lighting industry. In addition, through the positive improvement of the global high-power LED technology leader in materials, processes and packaging technology, high power LED luminous efficiency and performance is increasing very fast, high-power LED has begun to go into the indoor and outdoor general lighting, automotive interior and exterior lighting, searchlight and other new markets. The high-power LED lighting industry will obtain the development by leaps and bounds in the next 3 to 5 years, to subvert the traditional lighting industry pattern.

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LED Lamps Export "New World" Emerges

China LED Lamps Export Status Quo

Even when the market remains in the doldrums, and under the context that the export ports of Europe and the United States are blocked, domestic lighting export growth momentum remains good. Seen from the export product composition, incandescent export is essentially flat with last year, the energy-saving lamps exports declines by 1.4%, fluorescent lamps exports declines by 6.5%. In addition to the remarkable LED growth lighting products, other categories have shown a downward trend. China's exports accounted for 30% of the global lighting trade volume of lamps. Which compact fluorescent lamps (CFL) and Christmas lights occupy more than 80% share of the global market, the incandescent also accounts for 1/3 of the global market share, and the proportion is still expanding. Since 2008, the domestic LED industry is booming, there is huge market potential, attract domestic and foreign enterprises in this land staking siege slightly pools. In just a few years time, China has become the world's largest led lighting residential fixture exporter.



Short Board of LED Lighting Export

Related statistics show that the third quarter of 2012, the port of Xiamen LED kitchen downlights exports grew five-fold to $ 70,110,000; Hangzhou LED lamps and lanterns exports reached $ 100,000,000, an increase of 34.67%; Shaoxing LED lamps exports amounted to $ 69,440,000 , with an increase of 133%. LED lighting is in a relatively weak market environment, against the trend. As for the export geographical constitute, the United States is topped, accounted for 20.20% of total exports; followed by Japan and Germany accounted for 17.2% and 7.6%, respectively; Although Hong Kong has a large export volume, but is mainly confined to the re-export trade. Although the United States is the largest exporter of domestic LED lighting, but the barriers to entry are relatively high. LED lighting products in order to enter the United States of super retail channels, they need to obtain the UL and Energy Star certification. Meanwhile, the U.S. government introduced subsidies for LED lighting products, which led directly to the lower price of LED lighting products, only to take the path of "puerile". In the Japanese market, the 2013 years, the export situation will undergo great changes.

The LED Fixtures Export "New World"

During the first three quarters of last year, both the U.S. and European markets, the Japanese market, LED export has a contrarian growth. However, to enter the market, it is inevitable to encounter technical certification, especially patent lack of distress, making the export of domestic LED enterprises frequently blocked. In recent years, Russia, Thailand and Africa LED demand have become a new LED lighting export market. Southeast Asian market demands for great LEDs, and the policy is very attractive. The statistics show that of the relevant bodies, Thailand lighting market size is about 1.4 billion RMB in 2012 to about 12%, including LED, expected by 2015, the proportion will increase to 45% -50%. More important, as long as the Chinese enterprises get the certificate of origin of the domestic LED products export to Thailand can enjoy zero tariffs, but the price of Thailand is 2 times of China’s. The products exported to Thailand, only those through the Thai the TIS system of certification (similar the domestic CCC certification) can be sold in the Thai market.

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The Impovement of LED Spot Lighting

LED point light source is a point light source, if the application is not good, and prone to glare from the whole industry chain, LED lights, radiator, drive, replace all of the high-pressure sodium lamps cost is not necessarily cheaper. Hangzhou Bulletin the Wu Ming Fan, LED spot light, director of the Institute, the LED lamp technology requirements, require advanced large-scale replacement.

In addition, the indicators of the evaluation of road lighting “illumination” are better than “brightness”. The various little throat professor pointed out that LED spot lighting can be replaced by the brightness of the light distribution to achieve the bat LED spotlights. The actual situation The brightness expensive measuring instruments penetration is not high, so for the convenience of the general lighting, rather than brightness. The evaluation system is flawed, difficult to guarantee the quality of LED lights.



Promoting the dimming LED spot light renovation project for the government of the most powerful companies also has their own views. "Subsidies to promote government can solve the urgent needs of the enterprise, but need the ability to save the government project eligibility successful product in the end simply different, and to rely on time to test. " said by a street lights manufacturer, who worried that the government palliatives, excessive administrative intervention may become secondary LED street light manufacturing industries. At the same time, he also pointed out that the face of the impetuous market, and companies need a clear direction of their own development, rather than the government-supported projects.

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U.S Scientists have Developed Warm White LED Light New Materials

Warm white LED lights have been developed

As we all know, LED (light emitting diode) lights are energy efficient and have longer life expectancy, but the current LED lights are mainly light blue luminescent lights, which hindered its popularity in the field of indoor wholesale lighting. Today, warm white LED lights have been developed by scientists at the University of Georgia, USA, which are said to be the world's first to use single phosphor and single light-emitting unit. The paper details about this material are published in the latest issue of Optical Science and Applications journal of Nature Publishing Group.

Two indicators to measure the quality of artificial light

The paper's lead author, Pan Zhengwei, associate professor at the University of Georgia said: "At present, the white LED lamp is used on flash and auto headlights, the light blue luminescent they emit is less likable, especially in indoor lighting field. Our materials have achieved warm color temperature, while at the same time achieved a realistic color reproduction. The LED lights earlier improved using single phosphor failed to achieve this effect. "Pan Zhengwei said, there are two indicators to measure the quality of artificial light. Correlated color temperature is used to measure the well-being of the light. For indoor lighting, color temperature lower than the temperature of 4000K (Kelvin) is ideal and correlated color temperature higher than 5000K, the light will emit light blue luminescent like white LED t5 light fixture. Another important indicator is the color reproduction that is the ability of the light source to simulate natural light. Reduction degree reach more than 80 is ideal for indoor lighting, below this value the color will be very distortion.

The material developed by Pan Zhengwei and his colleagues meet these two conditions, correlated color temperature is controlled below 4000K and color reproduction reaches 85. Pan Zhengwei said coat the outer layer of blue LED chip with different colors phosphor is able to issue warm white light, which would then make phosphor-based white LED lights. However, these raw materials are laborious and cost money in accordance with the precise ratio, and eventually the light color will be different, because each raw material has not the same reaction to temperature change. One of the authors of the paper, Doctor Li Xufan, Engineering of the University of Georgia in Reading said: "Using single phosphor can solve the problem of instability in the light color, because single material does not change as the temperature rises."

The new material still needs to solve some problems before being applied in lighting

In order to develop new phosphors, Pan Zhengwei and his team selected europium oxide, aluminum oxide, barium oxide and graphite, each of which are taken to a small amount and mingled together. Then they put these powdery materials into a tube furnace and heat to 1450 degrees Celsius. The vacuum state in the furnace makes the vaporized material onto the chassis, and deposited as yellow light-emitting compound, and then put inside the bulb. Though research results are promising, Pan Zhengwei stressed that they need to resolve a few problems to apply this material in the lighting for homes, businesses and schools. The luminous efficiency of the new material is much lower than the light blue white LED lights. In addition, large-scale production will face challenges.

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Programs to Increase LED Tube Service Life and Brightness

If LED tubes need to maintain the long life and high brightness, the problem to be solved is that the four key technologies: power, LED light source, cooling, security.

1. Power supply The first requirement for power is high-efficiency, high-efficiency products had low heat, and the stability is bound to be high. Usually isolated and non-isolated two programs are used for power section; isolated volume is too large, less efficient, which will create many installation problems in use, and don't have large market prospects as non-isolated products.

2. LED light source The LED light source using Taiwan Okinawa Cummings patent structure, its chip is placed at the pin, thermal silver foot directly bring out the heat generated by chip node, which is qualitatively different with the traditional DIP products, and patch products in the heat; the nodes temperature of the chip is not cumulative, to ensure good use of the light source lamp beads, to ensure the long life of the light source LED, low light failure. Traditional patch t8 led tube light products connect positive and negative through chip gold, but also connect the heat generated by the chip over gold wire to the silver feet, thermal and electrical conductivity are conducted by gold wire, and the heat accumulated over a long time will directly affect the life of the LED Tube.



3. Heat dissipation Introduce and apply infrared heat radiation to fluorescent tubes is an important means to improve lamp life. In thermal considerations, we distinguish LED light source lamp beads cooling heat and power, not disturbing each other, in order to ensure the reasonableness of the heat dissipation. There are three ways of heat conduction, convection, conduction and radiation. In a closed environment, the convection and conduction are less possible to achieve, dissipate heat by radiation is key consideration for the tubes.

4. Security Security, PC flame retardant plastic tube, because the infrared heat can penetrate the PC tube, when we design and consider t8 fluorescent tubes use, we need to pay more consideration to their safety, all-plastic physical insulation, that is to use non-isolated power supply can absolutely guarantee the safety of use. LED tube development has been quite a long time, from the energy-saving effect of view, its future application surface is quite broad, in addition to energy saving, their safety, the use of long-life is what we should be concerned! Safety is the first element in the design of the LED tubes.

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Several Keys to the High Quality LED

Third-party testing

In order to eliminate the injustices that exist in the test, many companies have commissioned a third party to test LED assembly and circuit structure. In the testing process, and at the same time, pressure, temperature cycling, fixed voltage / change current fixed / change test and the test in other harsh environmental conditions decide whether the LED(such as flexible led strip lights) meets the requirements of the application. The occurrence of the large number of parameter changes before and after the test should be recorded while monitoring the changes in the measured LED brightness, color, and the voltage drop. In addition, the assembly technology has more impact than the performance of the LED chip to some extent. The design engineer should ask LED suppliers for the LED reliability specification, and LED assembly should be tested to ensure higher brightness. Some good LED suppliers can ensure the reliability of the LED assembly technology for three years or longer, and can provide high quality LED and the appropriate design for specific applications, including the final LED products.



The importance of LED detection

In the early 1990s, LED was used in the brake lights for cars and trucks. Some LED design soon appeared inconsistency on the performance indicators, and soon be burned down, the reason may be the led power supply quality, perhaps completely the design of the product. Until now, in the traffic lights, LED becomes more suitable light source, and this phenomenon was only great importance. If the stress tests or accelerated life cycle testing has been done, then LED or LED assembly can be considered as high-quality or qualified, and can be used in reliability occasion.

Rational usage of LED

Not every application needs high-quality LED assembly technology. If the assembly of the LED does not meet the requirements of the harsh environment, the application does not have larger security risk, or, if the maintenance costs of the final product are not very high, the use of the differential of some of the assembly technique may be more appropriate.

The cost of LED light

The most fundamental content is the LED must be affordable. So, in the limit of cost requirements, it is necessary to consider the level of supplier product packaging, assembly design experience and testing. The design that meets the application and market demand is the most effective means of service to end users. If the application requires high-end solutions, the chip vendor selection, design experience, and tests are the factors that you should consider. If you do not consider the sales price of the high-end products, you should consider very carefully the difference between good and bad LED other relevant factors. LED suppliers with packaging grade classification ability, as well as to the reliability, accelerated life cycle testing vendors is a long-term cooperation, which helps manufacturers with a more reliable LED develop high-end products.

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This article is come from:http://www.lightingequipment4u.com/several-keys-to-the-high-quality-led/

Sanan optoelectronics LED bullish on organic plant loading concepts

Using the principle of LED light sources made of lamps and light bulbs, lighting itself does not have any pollution to the environment, necessary for the simulation of plant growth through the light source spectrum, so that plants can grow at all times, and also worked for flowering in solid. Profile picture morning haixi (microblogging) reporter Wu Jing to day-to-day lighting of LED lights if used in floral hastily, what will happen? Well not only debugging, but also strong flowering. How to use the money? Yesterday, sanan optoelectronics chairman Lin Xiucheng morning news reporter interview revealed, except for input in the area of traditional, also will open up new applications of LED in the area of plant. Company belonging to 666 million yuan of profits in listed companies, rose 14%. Company accounts for 1.2 billion dollars in cash.

At present the company's financial disclosure report shows the company runs good, national development Bank recognized the sanan optoelectronics, in the middle of this year, has signed a strategic cooperation agreement with sanan optoelectronics. Three quarterly shows that sanan optoelectronics is highest among non-recurrent revenue from government subsidies amounted to 328 million Yuan, is the largest benefit breakdown. "1 device is 12 million yuan of subsidies we have 103, subsidies on a wide range of nature. "Lin Xiucheng, more acceptance of this year with equipment, subsidies were held to account, and equipment increased primary support increasing the company's capacity of. It is understood that in 2010, sanan optoelectronics in chip production base was set up in Anhui last year after production, sales volume continues to grow, and sanan optoelectronics to develop overseas markets also greatly increase the size of the company's sales. "We have entered Taiwan market to further upgrade Taiwan market share, with a number of other overseas markets also have a deep cooperation. "Lin Xiucheng said.

New areas of application with LED "photosynthesis in plants through natural light during the day, and we have it at night for photosynthesis. "Lin Xiucheng told the morning news reporter, in September this year, the company launched new products is to LED lamps in plant body, chip deworming, flukes, are currently in production. It is understood that the lamp and light bulb made of using the principle of LED light sources, lighting itself does not have any pollution to the environment, necessary for the simulation of plant growth through the light source spectrum, so that plants can grow at all times, and also worked for flowering in solid. At present, global enterprises a handful of this attempt, at the national level, sanan optoelectronics is the first to eat the crab. "We went to Japan visited, in Japan car park mezzanine, growing plants can be useful this way, the effect is very good. "Lin Xiucheng, is optimistic about the organic concept. Sanan optoelectronics currently has an annual production of LED wafer, chip 128 billion tablets of the productive capacity of 5.8 million tablets, total capacity ranking first in the country, products are widely used in indoor and outdoor lighting, backlight, led, lights, electronics and aerospace, solar power and other fields. Lin Xiucheng describes, as three residential construction with a full production in Anhui Province and steadily promoting the construction of phase II, in 2013, the company will be an annual production capacity of LED wafer, chip scale of integrated production of 250 billion tablets of 10 million tablets.

LED light sales dim

Patna, March 6: Residents of the state capital seem to have given a cold shoulder to the tourism department's initiative to ensure easy availability of blue LED lights for illuminating their houses during the centenary year celebrations.

According to a resolution of the tourism department of illuminating all prominent buildings ' government and commercial ' with blue lights in the evening for three days starting from March 22, Bihar State Tourism Development Corporation (BSTDC) today opened two stalls at an exhibition-cum-sale of LED lights on its premises at Hotel Kautilya Vihar. However, the stall owners complained of "very poor sales".

"The footfall at our stall was extremely poor and not even five people purchased the LED lights. We are highly disappointed by such a low response," said Bhushan Kumar of Roxy Electricals, who has set up a stall.

The sales at the second stall were a tad better, but not up to the mark. "Not even 25 people purchased LED lights from our stall. This is much below our expectations. However, there were many people who enquired about the rates and the way to put up these lights at their houses. So we expect the sales to shoot up tomorrow," said Ranjan Gupta of Shree Radhe Electricals.

Vikash Vardhan, one of the very few buyers, seemed enthusiastic about these LED lights. "I have bought a roll of LED strips for Rs 500 and will decorate my house with them during the centenary year celebrations. Moreover, I am going to ask my neighbours and relatives to buy these lights to join the celebrations," said Vardhan.

BSTDC has decided to extend the exhibition-cum-sale till tomorrow. "The stalls at Kautilya Vihar will be open tomorrow as well. In a paper published on Tuesday in the Proceedings of the National Academy of Sciences journal, the scientists described how they were inspired by the firefly, a bright and efficient source of natural light. election results, and as uncertainty prevails over Greece next aid payment. Kingfisher may not be able to fly if it does not infuse enough capital, hurting its ability to get investors, Pratip Chaudhuri said on Tuesday. He did not say what steps the lenders would take if it was not able to infuse capital by the deadline.