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Compared with the traditional lighting lamps, the detection of LED lamps is a new subject, and it is bound to be a challenge to carry out the "ten cities" project. Where is the difficulty of detection, how to solve? What is the corresponding relationship between the detection index and the quality of LED lamps? LED lighting standards and norms will have a profound impact on the industry? National electric light source quality supervision and inspection center of the two directors, in view of the above problems were made from different angles in-depth solution.

Dialogue national electric light source quality supervision and Inspection Center (Beijing) director Hua Shuming

Reporter: would you please tell us the focus of the national electric light source quality supervision and inspection center.

Hua Shuming: there are two key points. First of all, focusing on energy saving and emission reduction for high quality lighting product quality supervision, technical improvement, the relevant standards, and related testing methods. Special attention is paid to the research of LED product testing methods, the research of quality methods and the establishment of the evaluation system.

The second aspect is the establishment of standards. In the process of establishing the standards, how to integrate the international advanced standards, and how to affect international standards, promote China's standards, promote the development of the industry or industry.

Reporter: in recent years, semiconductor lighting testing institutions in China widely participate in international cooperation, such as participation in the detection and alignment of the international semiconductor lighting products, and business cooperation with the United States Energy Star, how international cooperation? What are the implications for international cooperation?

Hua Shuming: in international exchanges, we actively participate in the activities of IEC and CIE, their participation in the standard setting process, to get international recognition, now working for the United States to do detection of energy star, establishment of the energy star is actively carry out LED detection method and product evaluation. We participate in international comparison at least once a year. Comparison between laboratories is a way to verify the ability of the laboratory, in the international comparison, lighting between laboratories, can really achieve the level of optical properties of lighting is less, especially compared to the optical properties of lighting, the difficulty of higher, but in the previous comparison, we are able to do very well.

The United States Energy Star is currently active in the LED certification preparation work, so we recommend China enterprises to actively track and actively obtain the energy star certification, which helps Chinese enterprises rapid growth, because the authentication is open to American high-end market door. In the high-end products is the high-end price, LED such a high price of the product itself, so the energy star certification is very necessary.

Reporter: what are the difficulties in the detection of LED lamps?

Hua Shuming: the first difficulty compared to LED products and lighting products in the past is a revolutionary product, completely different from the incandescent light-emitting principle light source and gas source, and in the performance of photometry and colorimetry are completely different, but also relates to after cooling conditions do not have the past, the performance of different lead to the detection of past experience it is difficult to directly copy, including the lighting direction of its size, and to design lighting bring revolutionary change, so some new thinking on detection.

The second difficulty, LED has a long life, how to assess the reliability of LED lighting appliances, which is unprecedented lighting products.

Reporter: "Ten City million" project in the light of the difficulties in the detection of LED products reflected in what areas?

Hua Shuming: Ten City million is a very important project, from the central government to local governments have attached great importance to the enthusiasm of local governments is higher. But at this point, the workload is huge, the difficulty of work is unprecedented, because people have not done such a thing. The main difficulty lies in:

First, this is a mature product, the product is not mature, and progress quickly, the cycle of semiconductor lighting replacement is 4 months, during this period, we promote the semiconductor lighting there will be a lot of immature things, that is to say we take the road of our predecessors did not pass through the road, we are the first person to eat crab. Second, it involves a wide range of aspects, different regions, different city cultural background, development of the city, the City builders demand and consider the point of view is different, these differences bring great difficulties to us. Third, due to the immature technology of the product, there is no formal standards, there is no mature inspection methods, even in the international arena, so far the inspection of LED lamps are still in the study. How to evaluate the quality of LED lamps will become a major difficulty.

Reporter: on the "Ten City million lamps" lamp detection is the focus?

Hua Shuming: I just talked about is a difficult detection method need new thinking, because the technology is not mature, think it is good today, but because the product technology updates fast, because we are not so in-depth understanding of technology, and tomorrow the product is found to have defects and shortcomings. Therefore, I believe that in the future, ten city million light detection, it is not suitable for all aspects of the attack, just grab a few key evaluation.

First, the safety of the product. The product should have basic safety conditions. Second, LED is a highly efficient lighting products, then the first to solve it is efficient, we want to evaluate its luminous efficiency. Third, the emphasis should be placed on reliability. can