作者：Blade

led street lights price and temperature rise problems

led street lights price and temperature rise problems

 

During we use LED lights, we would find, the higher temperature is, the lower lumen output is, so, why is it situation a problem for led street light price?

Normally, the reasons are, Chip quality, solid crystal bottom plastic, phosphor, fluorescent glue, brackets, andcooling.

Let’s analyze the reasons from the inside structure of the led street light price and led products. All these test results are from the top LED High Bay company–ENELTEC.

Test A:

We use Nichia183 LED, no heat sink, link it in the circuit, put the soldering iron on the foot of led. If the temperature is not very high, the lumen output of led would be lower, when the temperature  reach 380℃, the led would stop working at once. Now, then voltage of led would be lower than 1 V, but the PN is still good, it means the led is not dead. Then, if you low down the temperature of  soldering iron, the lumen output would me higher.

Test B:

We use 3528 white LED, put the soldering iron to make the hot, 260℃ and 290℃. Heat them by 260℃ for 1 minute, and then test the lumen after it’s cool.  Then heat them by 290℃ for 1 minute,  and then test the lumen after it’s cool.

We tested 5 pcs of LED, the 260℃ for 1 minute, the lumen is not lower, but even higher!  Please check the data listed below.

 

 No.

Initial lumen

260℃

290℃

①

2.610

2.636

2.573

②

2.589

2.607

2.596

③

2.617

2.667

2.624

④

2.607

2.619

2.571

⑤

2.629

2.615

2.581

 

Now, let’s analyze the results.

From test A, in the high temperature, the lumen get lower, even stop working, when the temperature get lower, the lumen would be back to normal.

From test B, After the high temperature, the lumen is even higher, so, the lumen get lower only by long time high temperature working. So, we should do the correct design and calculate the led street lights price.

 

China’s mr16 light fittings industry development towards regionalization and grouping

China's mr16 light fittings industry development towards regionalization and grouping

China is the world’s most important consumer electronics and lighting products production base, making it the world’s largest LED street light components application market, the 2011 global consumption of about 35% of the LED components. LED Lighting China Market Application to the public landscape lighting, electronic products, backlight, mr16 light fittings, screen / billboard, general lighting for the four major application areas. China’s LED industry is moving towards regionalization and the direction of the Group.

The lighting industry is basically there is the light of globalization, the characteristics of the lamps in the localization industry. Together with recent years the Chinese LED market opportunities, mr16 light fittings, mainly from government public construction and demonstration of tenders, the proportion of residential and commercial and industrial lighting, indoor lighting market is still low, that mainland China’s LED lighting industry and gradually formed a special regionalized group strategic layout.

Although China is a unitary leadership system, but local governments in the economic and industrial development, in fact, highly competitive, LED lighting at the same time have a huge market potential and the characteristics of the energy industry, led high bay more local government areas of battleground. Particularly in the coastal provinces and cities more economic strength, such as Guangdong, Zhejiang, Jiangsu and the fostering and protection of the local LED lighting manufacturers spare no effort. In the thinking of local governments to foster the development of local industries, mr16 light fittings, market protection measures significantly, if the failure to obtain the support of local government, LED lighting manufacturers will be difficult to market distribution across provinces, making mainland China LED lighting manufacturer with a significant local color, and gradually form regionalized powers separatist race condition.

China LED lighting industry funds and technology into the low barriers to supply chain management costs, coupled with the market regionalization characteristics of the firms invariably take vertically integrated strategic layout, making mainland China LED lighting industry is gradually emerging from the past identified mold, low quality the outlook of the industry, mr16 light fittings, the formation of a large group of industrial competition

Identify how to purchase led lights in good quality with 3 points

Identify how to purchase led lights in good quality with 3 points

With the continuous development of society, the LED lights with the lighting of the city can replace the neon lights, play an important role, purchase led lights, while LED lights with the production of many people entered the low-threshold, launched this project. But those with experience have a way to identify the regular manufacturers to produce LED lights and LED lights of the cottage version of the band (ie depends on manual work products produced in the rental) is a glance from the appearance of out. LED high bay The following talk about with eyes to identify the LED lights with the quality of good or bad:

1, see the solder joints. Regular LED lights with manufacturers to produce LED lights with SMT chip technology, purchase led lights, the production of solder paste and reflow soldering processes. Therefore, the LED lights to bring the solder joint is relatively smooth and the amount of solder will not solder cylindrical arc-shaped LED electrode extends from the FPC pad to. Cottage version of LED lights with solder joints is uneven, mostly a dot wrap welding foot, and have varying degrees of tin tip, which is a typical phenomenon of manual welding.

2, see FPC quality. FPC sub copper and rolled copper two Bonded Copper copper foil is projecting the look of the words from the pad to be seen with the FPC connections.Rolled copper is close and FPC as a single entity, purchase led lights, can be bent without the pad off phenomenon. Bonded Copper bending too much there will be pads off, the temperature is too high maintenance, can also cause the pad off.

3, see the LED light with the surface cleanliness. If the SMT production, LED lights, the cleanliness of its surface is very good, purchase led lights, do not see any impurities and stains. But if the cottage version of LED lights with the production of hand-welding process, the surface no matter how clean, will be residual traces of stains and cleaning the surface of the FPC will be flux and tin slag residue.

2012 supermarket white led light has been predicted, and summed up the following three features

2012 supermarket white led light has been predicted, and summed up the following three features

First, the foreign large supermarket chains still T5-based LED products, try to gradually extend. Late last year, LED lighting products have been 100 Wal-Mart in China. Theapplication of LED lighting products, not only to Wal-Mart 50% of lighting electricitysavings, white led light but also help Wal-Mart’s environmental protection and energy saving.

Second, the supermarket lighting market is highly competitive. May white led light encounter a”personal overtaking in a fully competitive lighting market environment, a little slack.

Third, LED products, high barriers to entry, foreign supermarket only value the quality of the product, and not really care about the price. This virtually set an entry barrier, LED high bay only LED companies win low price but high quality technology to block the door.

At the same time, Lin Xiaojia noted with concern that “In recent years the development ofthe LED light source has been developed into the darling of the lighting business, white led light but it is undeniable that most of the core technology and profit are foreign lighting giant carved up by the traditional domestic lighting basic easy assembly of the main, almost ‘not behind’situation. ”

LED promotion of seeking breakthroughs supermarket lighting shall be considered

At present, the ambient lighting of supermarkets and shopping malls lamps and light sources, white led light including CFL downlights and T5/T8 fluorescent lamp bracket grille and metal halide. The general lighting of the supermarkets more and more inclined straight tube fluorescent lamps to the three primary colors primary light source, and using low-power, white led light high power factor and stable performance of electronic ballast, or the new breed ofballasts.

Cast optimistic views to supply high power led street light

Cast optimistic views to supply high power led street light

Looking forward to 2012, the LED people industry are still optimistic about supply high power led street light in China’s LED lighting market.

Looing back to the past of 2011, the LED industry can be described as weird smells, the small and medium sized enterprises were difficult to move, the products were mixed, companies had flocked listed, the western industrial as a new force suddenly rises. Looking to 2012, the LED industry insiders still looking further to supply high power led street light in LED lighting market.

In 2011, the state of development of the LED device market performance in different areas of application are keeping the same. On the aspect of TV, the display backlight and LED display by the global economic impact of demand show a obvious decline. In general lighting, althought there is no explosive growth, overall, it still shows a growing tendency although it has a little gap between magnitude and speed of the expectations. Take street light as an example, compared 2011 with 2010, the installation of LED street lamp has increased 30% estimately.  Looking forward to 2012, as for general LED application field, with the steadly ingrading of light quality and effect, deduction of system cost and the implementation of encourageing policies, the situation should not be a big change and appear an increasing trend of supplying high power led street light.

As for Chinese market in recent years, LED terms are frequently mentioned. With the increase pressure of energy conservation,  China government stepped up efforts to support LED high bay. It goes without saying that China and Asia in the future will be the LED industry especially the huge market of LED lighting. But compared with developed country, China LED industry is still in its infancy. It needs not only government’s support, but also some positive policies.

South Korean LED industry promote second rank qualifying and led lamp manufacturers are hot

South Korean LED industry promote second rank qualifying and led lamp manufacturers are hot

Recently, according to estimates, the 2010 Global LED industry output value distribution (including upstream grain and package ), the Japanese occupation rate of market will reach 26%, led lamp manufacturers,
Korea manufacturer23%, Chinese Taiwan manufacturer market share is estimated to be 19%, South Korean manufacturers production value ranks may be up to second.

Investment consulting senior fellow He Zaihua points out, to2010 market action observation, Han Qiruo through at least not too accidental, Korean LED industry develops so rapidly, led lamp manufacturers,  the government’s efforts contributed, to cite the country’s financial resources to support large enterprises such as Samsung, LG Electronics Development to become the LED industry of the backbone, led high bay which successfully guide Korea large enterprises in the international market and to seize the market share.

Compared with the South Korean government support energetically, the government of Japan in2010to support strength weakening, it is also South Korea and Japan rapidly close the main reason of difference, led lamp manufacturers, although Japan has been at the forefront of LED lighting Products technology research and development, but the scale of the application has been gradually weakened, the market started later than expected, Japanese enterprise forward pace slightly conservative, this also to South Korea’s massive attack created opportunity.

According to the investment adviser released”2010 -2015China semiconductor lighting ( LED street light ) industrial investment analysis and forecast report” show,2009 global LED packaging factory revenue total to $8050000000, compared with growth of 5% in 2008, of which, led lamp manufacturers,
SamsungLED in the Samsung Group ‘s support, revenue growth rate high amounts to 175%, ranked by 2008.10 outside rose to2009 Global fourth, global growth is most rapid LED manufacturer.

led street lights problems, failure of projects in Nanjing

LED street lights problems, failure of projects in Nanjing

In China, we start a lot of new lighting products, try to replace the CFLs by LED  Lights, technically it’s a good plan, but it’s very differet to be realized.

In 2010, some other led company do a demo project in Nanjing, try to replace all the HID Lamps by led street lights, at that time, the price of led lights are  about 1000 USD, and the price of HID lamps are about 350 USD. 170 units of led street lights were installed,  but 2 years later, LED street lights problems happened, 80% of them are not working.

So, why the led street lights problems happened? During the 2 years, the LED company replace all the LED Drivers, but the lamps are still stop working one by one.

Actually,  the led street lights problems already a big problem for LED street light companies.  As we all know, the power supply and led chips are the 2 problems for the lifespan. Till now, some led companies already succeeded in small LED products, like LED Spot Lights, but the big led lighting, even outdoor LED Products would be very difficult to design for most of the LED Companies.

I’ve ever talked to the Chief designer of Eneltec (top LED High Bay company), the reason why all the LED products of Eneltec offer a 2 years warranty, and the fail percent would be under 0.3%, are just because we use the best materials, best components. To improve sales turnover, all the LED Companies want to reduce the cost of products, but we should not save the cost by low level materials and components.

 

 

Mounted on wheels led light automotive was born

Mounted on wheels led light automotive was born

In order to improve the bike riders for night driving safety, city to build bike lanes. But the most important is, led light automotive, motorists need to see them. An awesome mechanical engineers proposed a set of awesome solution: let the bike and car, with front and rear lights.

Kent Frankovich is the Stanford University and University of Texas mechanical engineer. One day riding home from school, suddenly he wondered why his bike before the ground so far, almost no shine yourself in front of the pavement, can not make the driver of the car note to self. So from October last year, led light automotive, he and two helpers created the LED lights mounted on wheels.

Revolights is the wheel of aluminum alloy ring hole, and is provided with a row of LED lamp. When the wheel rotation, LED luminous form an arc, in front of the white light illuminates the bicycle front road, while the later red warn vehicles attention. Luminous position is the position of the wheel, the driver can easily judge the distance of bicycle. This is the existing bicycle lighting equipment to achieve.

The development of industry standards is the only way which must be passed in the LED industry. At this stage, China lighting standard system is basically in reference to international standards and European standards, lack of independent research work standards and provide the technical support for these standards, led light automotive, enterprises can really become the guidance of enterprise production standards are still doubtful. At the same time, the application of LED products performance constantly changing requirements, improve, product is not mature, led high bay so it is difficult to develop an appropriate LED application product standard. Lack of standards has been the bottleneck of the development of LED industry. This requires the government and large domestic enterprises take the lead, led light automotive, leading industry standards.

Now, Revolight is lithium battery power supply, Frankovich et al. Hope to be able to develop using the wheel rotational energy feature of the new version.

The residential buildings under 12 layer use renewable energy for led high beam lights

The newly revised” Zhejiang province carries out < Law of the Peoples Republic of China (hereinafter referred to as” method ” approach” ) will carry out formally at rising on September 1st. LED high bay The” measures” and in April 1, 2008 the new revision and implementation of the” energy law” link, led high beam lights, will promote our province to establish and improve energy-saving long-acting management mechanism, promote energy saving job to be on standardization, legal system is changed, science track.

The residential buildings under 12 layer use renewable energy for led high beam lights

The reporter understands, in accordance with national “925” energy saving index decomposition scheme, I save” Twelfth Five-Year Plan” period, led high beam lights, the unit GDP energy consumption fell to 18%. However, because I save industry advanced level, saving space becomes more and more small.

How in the industrial field dig energy-saving potential?”” to” control” approach emphasizes mainly. Control high energy consumption enterprises number. According to the” measures” provisions, without a complete energy-saving targets or not completed to eliminate backward production capacity of mission areas will no longer approve the construction of a new high energy consumption projects.

One is the” control”, led high beam lights and led street light one is””. The new” approach” to broaden the field of energy-saving work, increase of building energy saving, energy saving, energy saving, traffic of public institutions of agricultural and rural energy content. For example, building energy-saving corresponding terms requires as much as possible in the civil building using solar energy, geothermal energy, methane and other renewable energy. In the future under the new public office buildings, affordable housing, the following twelve residential buildings, construction area of ten thousand square meters of public buildings, is in need of heating, refrigeration, led high beam lights, LED Street Lighting, and hot water supply and use more than one kind of renewable energy.

The United States and Canada has 7000 department stores adopted led high hat bulbs

The United States and Canada has 7000 department stores adopted led high hat bulbs

Now, Starbucks, the United States and Canada have7000 department stores have been completed with LED lights to replace incandescent LED Replacement Lamps and halogen lamps work. Environmental Impact chairman says, the goal is to cut 80% of the lighting energy consumption.

According to the correlation data analysts budget, each1000 square foot store will save $600, led high hat bulbs, and significantly reduce carbon dioxide emissions, energy saving lamp will reduce the total energy consumption of the7% store.

LED lamp is preferably mounted on the most important rest area and frozen beverage area, LED high bay CFL lamp can be installed in other places. In short, LED lamp can save energy and reduce energy costs and make great contribution to.

LED advertisement screen is a new form of media advertising is a new media technology and the perfect combination of outdoor advertising form. With its colorful screen, led high hat bulbs, three-dimensional sense of strong, high brightness, large size characteristics are widely used in global outdoor advertising media.

In recent years, a new force suddenly rises. Indoor and outdoor LED display ads, the world each big city square, station, an important thoroughfare in the establishment of advertisement information to large color screen, the color LED display ads brought more vast market. In modern stadiums, color LED display ads as well as the scoreboard also has become the necessary equipment.

At the same time, along with the continuous progress of network, communication technology makes LED display screen to realize the advertising content of the wireless network transmission. Through GPRS technology, can make the wireless signal covering all the terminal LED advertising screen, led high hat bulbs, real-time playback of the content, do the advertising content synchronization process. With the Internet technology and communication technology as the basis, the whole GPRS wireless control system, rapid response, immediate updating LED screen content, in the face of the new market, advertisers can easily adjust the information content, rapid response to market changes. led high hat bulbs and LED street light, This is the traditional outdoor media is a subversion.