标签：solar powered led street lights

solar powered led street lights and led package

With increasing units of brightness, the increasing application of LED lighting in the area. In order to continue to increase LED lights brightness, single Lei chip area and the use of power potential can not be free, but doing so is also mixed with the high heat generation.

solar powered led street lights and led package

Ceramic package is not yet universal, K1 package proposed by Lumileds 1W (or above) led the field has become well-known products. But with the market, enhance the product features, packaging factory continually improving its own products. Film flat ceramic substrate (DPC Ceramic Substrate) coupled with the introduction of molding the direct production of optical lenses, ceramic package, high power led package the product and the addition of an option. Actual product authentication in the past few years, however, international companies invariably closer to the ceramic package directions, for reasons that deserves careful thought.

K1 and comparison of the ceramic package, the biggest difference is that the concept of the design:
K1’s biggest advantage is that the structure of the metal reflector cup, led street lights Lei chip back luminous efficiency can be fully applied. K1 structure of the material between each other thermal expansion coefficient differences, such as plastic and metal, the lens and the lead frame, etc., under the load of the cycle of long-term high-power, can make the material interface between the gap leaving the water vapor to enter. Especially in outdoor lighting applications, the use of the environment is more complex, outside temperature, water vapor, as well as environmental pollution brought about by a variety of gases such as sulfur .. etc, K1, trust and face more challenges.

Ceramic package design focus, focus on reliability. Use of high thermal conductivity of ceramic and metal, the heat produced by high power quickly export the package in vitro. Coupled with the thermal expansion coefficient differences on ceramic and metal, or ceramic with a optical part of the polymer (silicone) is small, and should reduce the risk of thermal stress generated in the material. In addition, an optical silica gel is produced by the process of molding, forming and covering the entire ceramic substrate, both optical and protective effect of the ceramic package reliability is much higher than K1,. Of course, the ceramic package using thin-film flat-panel ceramic LEDs(led flood lights) backlight can only rely on a flat metal to reflect light use efficiency than the K1 lower, but because of low body temperature of the ceramic package, so the effect of both added up, the differences in both the overall luminous efficiency is not obvious.

The development of solar powered LED street lights should have a long-term vision

 

The development of solar powered LED street lights should have a long-term vision

 

Focus on new technology development. Such as the solar powered LED street lights internal quantum efficiency enhancement, as well as changes in package structure and new phosphor / quantum dots, the transparent substrate, contact materials, reflective materials, the second optical / lighting reflector’s design, and development of high-performance drive power .

 

OLED challenges can not be ignored. Solar powered LED street lights and OLED have their own strengths, when the LED high bay lighting market, but also face the competition of “compatriots” OLED. OLED display technology has been relatively mature, and has entered the market, lighting technology is taken seriously, in the rapid development of. The commercial grade white OLED light efficiency reached 50lm / W general lighting lights more than two times the life expectancy has reached 100,000 hours. And laboratory research and development of white light emitting efficiency of 120lm / W, is close to the U.S. Department of Energy requirements for lighting materials 150lm / W. Of course, OLED flat light source is also facing some problems: poor antioxidant capacity of the OLED light-emitting materials, power, afraid of the water, you need to vacuum glass seal, so need LTPSTFT substrate, OLED applications in the field of large-size the cost will be high; the yield of large-size OLED panels are still not high, a substantial increase in the cost of OLED product line, but also makes the production can not improve quickly; light-emitting material properties, component life by the effects of restrictions of the short board; surface light source specifications and drive power standard is yet to be established.

 

The selection of various constant current sources in solar powered led street lights

 

The selection of various constant current sources in solar powered led street lights

 

Constant current source in the solar powered led street lights can be divided into the boost, buck, buck three kinds: the so-called step-up its output voltage is higher than the input voltage. Buck output voltage is lower than the input voltage. Buck is to automatically adjust its mode of operation according to the input voltage lower or higher than the output voltage boost or buck.

 

In the solar powered led street lights, commonly used lead-acid batteries as energy storage device, its voltage is typically 12V or 24V. The required output voltage is connected to the LED structure is determined. In order to make all LED forward current, typically in series with each LED, then the required output voltage is the sum of all series LED forward voltage. For example, suppose that the 10 LEDs in series (Figure 9a), the sum of the forward voltage of about 10×3.3V = 33V. In fact, LEDs produced by various manufacturers vary, but also different between each LED. Therefore, the total of 10 led high bay lights forward voltage is not the same. In fact, the constant current source, the constant current rather than voltage. So, do not need to know the exact value of the sum of the forward voltage, and as long as the higher or lower than the input voltage can be. Here, 12V or 24V battery, it requires a boost type constant current source.

 

Sense resistor to be as small as possible, in order to avoid the above power consumption. As low as possible for the fact, which means that its internal reference voltage. For chip designers have a certain degree of difficulty. If the reference voltage of 0.1 volts, is a very good chip, this time, the external sense resistor with a very small value, which means the entire system is highly efficient.

A comprehensive use of solar powered led street lights in 2012

 

A comprehensive use of solar powered led street lights in 2012

 

Reporter yesterday from the City Bureau of the letter was informed by the Provincial Bureau of Statistics of the initially approved the city’s 2011 annual GDP energy consumption of 0.814 tons of standard coal, down 3.97 percent more than in 2010, exceeding the goal of the provincial government issued the Huizhou decreased 3.43% task.

 

Daya Bay last year, reduce unreasonable use 22,000 tons of standard coal

“In concrete work, and strictly control access to high energy consumption projects, in particular, the Daya Bay project energy consumption level of solar powered led street lights as the access conditions to the implementation of strict energy conservation review, should learn from the promotion.” Bi Zhijian rate of the Provincial Commission by letter, deputy director of the provincial government energy-saving evaluation said that the working Group to the city to carry out the 2011 annual energy saving target responsibility for site assessment and evaluation work of led high bay lights.

 

It is reported that at Daya Bay District strict energy approval Guan, the introduction of the energy assessment and Review of the fixed assets investment projects of the Daya Bay area (solar powered led street lights) “on the comprehensive energy consumption amounted to more than 200 tons of standard coal project, before the initial entry in the project its total energy consumption per unit of industrial added value of energy consumption and other indicators to rigorous review and improve project access threshold. In 2011, the district is through energy efficiency assessment and review, to cut their unreasonable energy of 22,000 tons of standard coal.

The promotion of solar powered led street lights still needs to be improved

 

The promotion of solar powered led street lights still needs to be improved

 

The growing popularity of LED lighting, LED display. Implementation of the results of the most significant national undeniable Japan Asia LED lighting, LED bulb is on the market share in Japan’s largest lighting. In this respect China is far less than Japan.

 

From the results of Japan to promote solar powered led street lights, in addition to 311 large earthquakes in Japan so that they further enhance the outside of the awareness of environmental protection and energy saving. More important is that Japan has developed LED lighting, security, performance and interchangeability specifications, and more to ensure the interests of consumers, to ensure the quality of the product. Manufacturers in the manufacturing method to follow, within a certain range to reduce the production of shoddy products.

 

The current solar powered led street lights standards in Japan, Japan Industrial Standard JIS and the JEL Japanese electric ball industry specifications two categories.  mainly the LED lighting module and power dome LED lamp safety specifications and performance requirements of these standards LED lighting in a variety of environments, security, and color rendition, brightness, life, exclude security and performance below the specification of LED lighting products, in order to completely replace the traditional incandescent light bulbs and other lighting goal. The LED lighting is currently no national standards, only local governments to formulate their own specifications requirements.

 

The electric ball industry in Japan will develop LED lighting specifications, there are four main define the form of LED lighting and marking, as well as LED lighting and traditional lighting of the mouth of gold and system compatibility. Unlike traditional led high bay lights in the weight, circuit, system requirements Dengjun, if not to develop the interoperability specification, could easily lead to damage of the LED lighting when in use, even heat, fire, and dangerous.

Obama warned Iran that “window of opportunity” solar powered led street lights in the narrow

Obama warned Iran that "window of opportunity" solar powered led street lights in the narrow

 

Abstract: According to the British “Daily Telegraph”, March 14, the 14th U.S. President Barack Obama warned solar powered led street lights through diplomatic channels to resolve the Iranian nuclear issue of the “window of opportunity is narrowing, called on Iran to avoid any morebadconsequences. ”
World Wide Web Reporter Guo Wenjing reported, According to the British “Daily Telegraph”, March 14, the 14th U.S. President Barack Obama warned through diplomatic channels to resolve the Iranian nuclear issue on the “window of opportunity is narrowing,called on Iran to avoid caused by “bad consequences”.

Iran in the past tend to delay with the solar powered led street lights world his country’s dialogue, “Obama said at a news conference with visiting British Prime Minister David Cameron. “I think they should understand … through diplomatic channels to solve this problem the opportunity to reduce,” Obama said: “We will do everything possible to use diplomatic means to solve the problem, but in the end, we need to take seriously this problem sitting next to the negotiating table. I hope that the Iranian authorities to understand this. ”

According to Reuters, 14 reported that Obama, their economies of international sanctions against Iran has had a major impact this summer to implement a new round of sanctions or the Iranian economy will lead to greater damage.

“I have been directly and openly on Iran solar powered led street lights to convey the information that they need to seize the opportunities for negotiation, to avoid worse consequences in the future to Iran.”Obama said.

Obama said his goal was not to led high bay contain a nuclear Iran, but to prevent Iran from acquiring a nuclear weapon.

It is reported that the EU has called on Iran’s resumption of the Iranian nuclear issue of the”5 +1″ talks (the five permanent members of UN Security Council and Germany). To respond to Iran, said Iran was ready to restart the dialogue with the 5 +1 Group, and will soon send a letter to these countries.

A solo show for solar powered led street lights

 

A solo show for solar powered led street lights

 

To commemorate the 100th anniversary of the revolution held the first of sun yat-sen cultural festival opening ceremony, the use of modern technology and Chinese traditional culture the idea of combining, in zhongshan toki jiang square in creating a piece of the solar powered led street lights carrier “China zhongshan” print.

 

democracy and prosperity. This revolution over China about two thousand years autocratic monarchy, is a great revolutionary movement. The revolution in modern China is more fully in the sense of bourgeois-democratic revolution. Is it political, ideological brought to the Chinese people do not underestimate the liberation of the role. The concept of democratic republican revolution makes thorough popular feeling. The anti-imperialist and anti-feudal struggle to the revolution as the new starting point, deeper, more large-scale carried out.

 

“China zhongshan” seal of the creation, planning, design, to the realization of the whole application scheme is epic proportions, achieve a breakthrough solar powered led street lights application. “China zhongshan” four characters to ZhuanTi text outlined a traditional Chinese seal, text height up to 16 meters, the whole plane with arc arc length 54 m. Novel architectural design and automatic control and the perfect combination of mechanical structure, the present technology embodies in solar powered led street lights screen, through the automatic control and the combination of mechanical design, display with folding fan in the day to be automatic contraction principle, night can be spread, and eventually embodies the Chinese traditional art of lettering of the time-Yin and Yang. Designers tried to used led high bay to replace solar powered led street lights but finally failed. Otherwise, led high bay light also can be treated as a substitute.

 

Solar powered led street lights

Solar powered led street lights

 

 

In time to see the Zhuang Yating this name, I really wanted to change to own a pen called Zhuang strong, led high bay if learned later she and I became good friends, maybe real change.Zhuang old said, the get tough it is to suffer, every minute of facing and nobody cares nobody loves the danger, Solar powered led street lights, the character can be tough like a Wai chuan vests, others have just started to play the airplane when I had already started to hit the teacher, has been uplabeled as the rise of “talented” or “female hooligans”.

A man in Beijing, Solar powered led street lights, a blink of an eye soon ten years, ten years, a very long experience.Both good and distinct character is greatly enhanced, on the other hand, the gift ofworship me, these words, everyone like to watch the loss of text. Once I was afraid at thedoor of a home, turn the key is giving a rich sense of loneliness, accustomed to stay out in front of a small lamp, when I am also very fragile, but the very people to see .Solar powered led street lights.

“Lover’s Discourse” I especially like the section in which Kay Tse, talking about an animal in nature crush the story, her crush on Eddie, the results  of Eddie moved her numerous fantasy and did not let her try to confession, but soon gladly to meet the next section of crush. Yes, love when we have to force love, love is not the time, Solar powered led street lights. shook shoulders to his mother, memories enough.

Be a powerful, first you must be a complete person, this integrity is manifested in many ways.

The influence comes from the solar powered led street lights

The current cross-strait information industry and technical standards forum of cross-strait industry consensus goal is to expand the extension of the ICT industry to sustainable energy saving and carbon reduction benefits, which not only set the industry standard consensus and signed a memorandum of cross-strait cooperation solar powered led street lights highly optimistic about the immediate marketability,and the industry is also optimistic about the effectiveness of the led high bay industry will affect the supply of solar and lithium rechargeable electrical industry.

The influence comes from the solar powered led street lights

According to common standards to promote the Foundation Lin Kunming China polyethylene industry pointed out that the industry is developed to the outdoor led high bay, indoor lighting, at this time, the two sides standard with a consensus will help cross-strait LED lighting manufacturers together into the global market by the Chinese circle solar powered led street lights industry manufacturers in order to allow cross-strait leading position in the global ranking.

In addition, the chief expert of the Expert Group on the field of new materials of the National 863 Program, said Xu Jian, in accordance with the “12th Five-Year Plan, the LED semiconductor lighting project to the LED chip localization rate to reach 70% in 2015. In fact, China’s “12th Five-Year Plan” to start the solar powered led street lights policy on the promotion bring about the energy industry, In addition to the LED industrial chain, as well as high-wattage LED lights electrical storage battery, wind and solar power generation system. High Zhiyong, Taiwan Battery Association International and cross-strait cooperation to promote the group Executive Secretary pointed out that the 12th Five Year Plan “LED lighting set goals to achieve synchronization but also with a series of grid system to set up.

Egypt football disaster would be never forgotten by solar powered led street lights

In these days, a football disaster happened in Egypt, more than 70 people were killed.

I have to say, I’m very sorry to hear that. Eneltec have a lot of good customers in Egypt, one of their most interested products are solar powered led street lights. Now, after the new government, I really hope Egypt would be peace again and the economy could recover soon, but now, I think the solar powered led street lights business would not be recovered very soon. But, based on the whole economy situations now, I still think solar powered led street lights would be sold very well throughout the world, and starting the recover of LED Lights business.

On the evening of February 1, local time (Beijing time on the 2nd morning), located in Cairo, Egypt, the eastern port city of Port Said, large-scale conflict broke out, two soccer fans after the game to attack each other, throwing Molotov cocktails, the pitch moment change the battlefield. Almost at the same time, in Cairo Stadium, fans will be the stadium lit ablaze a time, however, the Egyptian state television reported that firefighters quickly controlled the fire.

Egypt VII Daily reported that the 3:30 train station in Port Said is still packed with people, ambulances and people anxiously waiting for the train of the wounded away, the entire train station is like a Cemetery was filled with rage and howl.

Egyptian Interior Minister Mohammed Ibrahim said, the day the fans riot resulting in 74 deaths and 248 people were injured. He explained that it was an accident, the Egyptian security forces failed to participate in the maintenance of order because of the lack of plans, security, the Secretary has done its best. Egypt waffle off “report estimated that over 1000 people were injured in the riots of the stadium.

After the incident, the Egyptian Armed Forces Supreme Council issued a second document. The main Xitantawei of the Commission requires the establishment of a Commission of Inquiry of the parties, to ensure that similar incidents are not the country again.