Clarify LED lighting characteristics and establish enforceable national standards

"A mess," talking about the development of China's LED lighting standards development, the first reaction of Zheng Haowen, director of the development of China's high-tech enterprise LED professional committee, is the four words, "Now the establishment of the so-called national LED lighting standards can be It's too early to say it."

He further pointed out that in the past, the Ministry of Science and Technology promoted the Ten Cities and Ten Thousands to be public works. When the industrial background is public works, it is really necessary to establish a set of standards, but at this stage, it is not a national standard, strictly speaking, it should be Acceptance Criteria. 'Ten City Wanxie' is an abbreviation for China's Semiconductor Lighting Application Project. It was launched by the Ministry of Science and Technology in 21 cities in April 2009. It intends to combine R&D with major industrial needs in order to promote semiconductor lighting through the pilot city scale application. Technological innovation, and promote the semiconductor lighting application market. For the urgency of the acceptance criteria, Zheng Haowen took Taiwan's LED street lamp standard as an example. After Taiwan formulated the LED street lamp standard in 2008, five LED street lamp manufacturers passed it in the first year, and ten were passed in the second year. The standard inspection bureau of the Ministry of Economic Affairs of Taiwan officially promulgated the CNS 15233 'LED street lighting fixture' standard on December 4, 2008. According to the Taiwan Bureau of Quality Supervision, the standard of LED street lamps not only provides the technical basis for LED industry in product design and manufacturing, government and private procurement, but also has great help in improving the quality of public works. This standard does help to improve the quality of the product, especially the strict requirements for the efficiency of LED lights.

Need to establish a complete acceptance criteria

The LED street lamp industry official stated that this standard stipulates that after the LED street lamp has completed the drying and lighting (1, 000 hours), it will continue to turn on the lamp under normal conditions, and the luminous flux shall not be lower than 92% after 3,000 hours. However, the characteristics of the LED will increase with time and high temperature. The phenomenon of light decay occurs. For LED manufacturers, how to maintain a certain luminous efficiency after the LED street light is lighted for 4,000 hours is a difficulty. In addition, in the durability test of LED street lamps, it is required to continuously operate 360 ​​hours at 50°C±2°C at the time of energization, and then measure the luminous flux after the end of the experiment. In such a high temperature environment, the reliability of LED street lamps is tested. It is also a major test.

Although there are strict standards, according to Taiwanese construction engineering friends I know well, it is pointed out that even with this standard, the project cannot be accepted according to this standard, because the standards define product specifications and characteristics, but the methods and methods to achieve the standards There are differences in system performance and quality. Therefore, it is necessary to have a complete supporting inspection scheme and establish a complete acceptance standard for the final system to be built. This makes sense. As such a lesson from the past, whether or not mainland China wants to compare with Taiwan’s standard model, Zheng Haowen thinks this is debatable.

China's “Ten City Wanhao” LED street light public construction plan launched in 2010 was affected by many factors, including government budget funds and unstable quality of LED street light products, resulting in the actual installed capacity of less than 400,000 baht. However, according to the market research institute Tuopu Industrial Research Institute pointed out that basically, China has not changed the direction of the development of LED lighting, if the three ministries of the end of 2010 from the LED lighting joint standard view, LED large-scale business opportunities should not be far.

The Central Government of China held a large-scale public bidding for LED lighting products at the end of last year (2010). The tender products include LED road/tunnel lights, LED downlights, and reflective self-ballasted LED lights (MR Series and PAR Series) to Chinese countries. The Development and Reform Commission, the Ministry of Housing and Urban-Rural Development, and the three ministries and commissions of the Ministry of Transport form a judging panel. This time, a total of 94 companies competed for the bid. Finally, 28 lighting products companies won the bid. The winning bidders are mostly Chinese LED manufacturers. It is understood that the technical specifications of the bid for the LED lighting product specifications and quality requirements, in addition to the safety of the lamp itself, the initial luminous flux, luminous flux maintenance rate, power factor and other relevant requirements, so for follow-up The development of national standards will be indicative.

According to analysts at LEDinside, a research institute, the bid is subject to a certain scale limitation for the demonstration projects submitted by each government unit. For example, the use of LED indoor lighting products for the construction of new lighting fixtures and renovation projects requires more than 5,000 feet; The use of LED street lights and tunnel lights for secondary roads, branch roads or tunnels lighting facilities new construction, renovation projects at least 500 or more, and the amount of each unit of the release of at least 3 million yuan or more, the future will be more and more Many units join the ranks of the demonstration process according to this specification, and therefore have a very large imagination for the future development of the LED industry. The Tuoba Industry Research Institute predicts that from 2011 to the end of 2012, there will be more financial street lamps financial subsidies and standard testing cases will be released one after another, which will help accelerate the progress of the Chinese LED street lamp market.

Takuya estimates that by the end of 2012, mainland China should be able to complete the installation of 2 million LED street lamps, 50 city demonstration projects, 70% of LED localization, and 1 billion kilowatt-hours of electricity saved annually. The LED street light market in mainland China will also enter a rapid growth period from 2012 to 2015.

Existing standards lack enforceability and influence

The realization of follow-up business opportunities depends on the establishment of standards and the actual influence. From 2009 to 2010, the Chinese government successively promulgated a series of LED national standards and industry standards. Among them, on December 15, 2009, the National Lighting Standardization Technical Committee The six leading LED-related standards submitted for examination and approval have become national standards, plus two mandatory national standards that were previously issued, a total of eight, and will be put into operation in 2010 one after another. In addition, in January 2010, the Semiconductor Lighting Technical Standards Working Group of the Ministry of Industry and Information Technology released nine semiconductor lighting industry standards, such as the Blank Detail Specification for Semiconductor Optoelectronic Devices Power LEDs. In addition to the above-mentioned national and industry standards, local governments such as Guangdong, Shenzhen, and Shanxi have successively introduced a series of local standards to guide the development of the LED industry.

However, various standards have been implemented so far, but their effectiveness and influence are quite limited. The main reason is that China's LED national standards and industry standards are still incomplete, lacking key indicators such as LED life span, color temperature, and heat dissipation, leading to a low technical threshold. , thus losing the dominant position of national standards.

Some industry operators point themselves more directly to the problem. “The LED lighting industry as a world-wide emerging industry has experienced rapid development in recent years that has brought about difficulties in the revision of standards. Due to the many links in the process of standard revision, it has a long implementation cycle from drafting to release. Some of the pointers even faced the situation that the standards were issued, that is, they were left behind, causing the influence of national standards to be reduced sharply."

In response to this, Guangdong initiated the LED lighting product benchmark index in 2011, which is based on the insufficient development of LED lighting emerging industry technology, rapid technological progress, etc., and selects product pointers that are recognized as having a significant relationship with the quality of LED lighting products. The benchmark index index is a relative measure of product quality, thereby establishing an innovative dynamic LED lighting product quality evaluation system, combined with third-party testing and unified platform evaluation methods, on the current market, LED lighting products first start from the street lights, quality Energy efficiency evaluation and positioning classification, its detection methods and standards will be dynamically updated according to the latest published standards and technical methods at home and abroad.

Clarify the characteristics of LED light source

For the confusion of China's LED lighting standards, Zheng Haowen believes that the fundamental solution lies in clarifying the characteristics of LED light sources and lighting modes, and then put forward more detailed and realistic specifications. He said: “The existing LED lighting standards still inherit the old thinking of traditional lighting. However, the characteristics of LED light sources are very different from traditional light sources. Using traditional lighting systems to think about the formulation of standards will basically result in It's difficult to prevent the situation."

He further pointed out that when the market is currently thinking about the explosiveness of the LED lighting market, more direct replacements are used. That is to say, LED lights should be used directly to replace the ball lights or lights on the old system because this is the most convenient method. However, it is undeniable that traditional luminaire designs do not demonstrate the advantages of LEDs. For example, the LED light is placed on a light pole with the same height as a conventional street light. Since the LED has directivity, the lumen brightness of such LED street light is bound to be questioned.

In other words, the use of traditional light source lighting standards and can not highlight the advantages of LED lights, these advantages include energy saving, controllable angle of irradiation, fast response time, long life, environmental protection and so on. Therefore, Zheng Haowen believes that only from the traditional lighting thinking, from the characteristics of LED lighting and the most suitable system point of view, we can develop the executable and long-term standards. It is necessary to formulate clear standards for heat dissipation, light failure, color temperature, illumination, etc., so that it is beneficial to establish consumer trust and acceptance of LED lamps. As to when the next phase of the standard will come out, Zheng Haowen said: “At present, the first focus is on clarifying the characteristics and modes of LED lighting, and this will be a hard work when it is abolished.”

The expansion of the market will provide greater support for the establishment of the standard. Looking ahead to the prospects of the LED market in mainland China, many international events and events that will be hosted in the next two years will have an effect. It is understood that in mainland China, there will be as many as 9-10 national or international events in 2011, such as the World Swimming Championships to be held in Changzhou, China in March 2011. It will be held in Xi’an in April 2011. World Horticultural Expo, Chinese High School Games and World University Games in July-August 2011, and the 100-year Activity Week in Wuhan Xinhai Revolution in October 2011, the China City Games, and the Asian Men's Basketball Championship and the World Triathlon International events such as championships and World Aquatics Championships will be held in China in 2011. As for 2012, there are the International Air Show, the Asian Games, the National Farmers' Games and so on. According to the Takubor Research Institute, in response to the hosting of event events, local governments will actively conduct construction of venues, urban regeneration, and the construction of large-scale public display billboards and energy-saving lighting, and the expansion of the domestic market will help. The influence of LED international standards in China.