LED lighting is a “directive doctrine”. The reason is that the led street lamps have highly been light directive. The light emitted to the front which is fully utilized. For me, we have no objection to this doctrine, and do not agree with this point of view. I hope we still look at this issue from a pragmatic attitude. Perimeter and behind the light in the design of the product which needs to be reflected to the front of the reasonable use. To achieve the desired condensing effect of the traditional lamps, it has been such application. LED lights can not afford the higher junction temperature, and requires sufficient cross-sectional area of heat conduction, or else completely segment connected to the light-emitting LED package 360 degrees out.

The led street lamps directional actual encapsulated stand optical structure.  “directive doctrine” at this stage explain the doctrine of LED energy-saving straw. From the historical perspective of the development of long precedent.

The mainland has several packaging companies are good in the scale of production capacity and technology. If they can cooperate with each other, or system vendor support, there will be greater opportunities for development. From global view, the importance of the packaging stage is as important as the chip. There is still much room for improvement of high-power packaging technology, and improve more quickly. Therefore, the state should increase support for efforts to enhance the competitiveness of enterprises in this process stage as soon as possible, and enhance the market share of China’s mainland enterprises. So, it is expected that the competitive packaging factory will show up within a year or two.

In addition, There are just few small and medium-sized Taiwan’s electronics companies, such as Foxconn, 20 years ago, the turnover of their company is just 200 million CNY. That’s why they have to focus one the main chain industry. We have to invest so much resources to this industry at the the beginning of the development. There are just a few company can make it. The scale of Taiwan’s LED is just NTD 100 billion.It’s impossible for an enterprise to make put so much resource in this industry. Epistar choose the development model of the level of mergers and acquisitions at an early date.It’s difficult for Epistar to make the industrial chain integration finished. From pragmatic point of view, the stage of led street lamps are just in the horizontal level.

For the design products, it is the most basic products according with national standards, but we need time to prove.

 

 

In the case of electricity, of course, the best AC-DC direct constant current output of the program.

This program can only provide a small power output (<40W) only the United States Power Integration company TOP250YN can provide 75W power output of the program. The circuit is very complicated, expensive, and low flexibility, which is not popular in mains led lighting applications.

 

LED street lamps direct constant current output power supply, but usually only a single output. If you want to multi-channel must be customized (large ones, and each current). On the one hand increases the cost, and will have any change would be very troublesome.

 

So in the case of electricity, the best first constant voltage power supply regulator and then using the constant current of multiple constant current module. The greatest advantage that we can get the highest efficiency in a variety of LED street lamps connection structure. Can choose the output voltage of the constant voltage source to achieve the best match. And high flexibility, it is easy to change their combination.

 

As a light source, the dimming is very important. Not only in order to get a more comfortable environment in the home, today, to reduce unnecessary electric light, in order to further the purpose of energy saving is more important. For the led high bay light source dimmer than other fluorescent lamps, energy saving lamps, high pressure sodium and other easy to implement, so it should be in all types of LED street lamps with dimming function.

 

 

Geng Bo from the perspective of industrial development, the development status of the semiconductor road lighting industry, there is the problem and carried out by the Government in terms of road lighting support policy and subsidy policy, issued an important development of the industry data. He pointed out that the 2011 100 cities in the installation of 800,000 LED street lamps, outdoor LED high-mast lighting part of the future will have much room for development.

 

Zhou Xuejun, Philips Lumileds lighting, Asia regional director of marketing, pointed out that the industry forum seems less talking about the topic of road lighting, but in fact, the development of road lighting market compared with last year and the year before showed a steady growth trend for road lightingmarket expectations of the development of the senses, the same time as the product matures and costs decline further, the LED street lamps market development opportunities to re-emerge.

 

Zhu catechumens on Taiwan’s road lighting market, the development status quo and the government in promoting industrial development of specific measures at the same time he also introduced the five kinds of road lighting with light the way, and pointed out that the use of the light guide device carried out with light may be will become the future development of direction, but is currently facing great technical difficulty.

 

Lin Yandan CIE conference held this year on the latest research reports and research trends analysis, pointed out that these research directions and research results for the reference and significance of China’s semiconductor lighting industry. She pointed out that the domestic LED enterprises should be a deep understanding of the characteristics of the LED light source, making the performance of the led high bay products based on a scientific basis.

 

 

Recently, the Taiwan Ministry of Economic Affairs Energy Secretary Ou Jiarui release the good news: exciting LED manufacturers in Taiwan will be installed in the next three years more than 300,000 LED street. The current price of 400-500 U.S. dollars per lamp estimate the opportunity more than 4 billion new Taiwan dollars.

 

Ou Jiarui said that the Taiwan LED industry output up to NT $ 180 billion in 2011, and 2012 estimated to be almost equal to NT $ 200 billion, the industry’s total investment has reached NT $ 80 billion, yield the highest in the world. Taiwan LED in addition to global marketing, the government also actively promote the green energy industry on the domestic market, have already been completed in September last year, Taiwan 700 000 LED street lamps.

 

Oujia Rui pointed out that from the next three years starting in 2012, Taiwan’s government plans to even the townships in the county and city comprehensive promotion of the use of energy-saving LED street lamps. Start with the first phase from the outer islands and remote areas, all public street lights will replace all the LED street lamp; second stage, the three provincial cities of Keelung City, Hsinchu City and Chiayi City a model city plan, is expected to full use of LED lights in three years; third stage is going to allocate NT $ 2 billion budget, in the five and the other 17 counties, according to the proportion of existing street, the first expansion of the Taiwan market, taking into account transport, employment, industry, multi-level aggregate results. Three stages there are at least tens of thousands of 30 led high bay lights domestic market could also contribute to the Taiwan LED industry.