China's commercial LED lighting market is moving from concept to real application
At present, it can be said that LED light sources are ubiquitous. Whether it is mobile phone, TV, computer or night lighting, street lights, tunnel lights can see the LED light source. The architectural lighting and night lighting design of the Shanghai World Expo venues are mainly the main force of LED as the light source, or LED light source as the material. The progress of LED light sources in indoor lighting is even more rapid.
According to Dr. Liang Bingwen, chairman of Suzhou Najing Optoelectronics Co., Ltd., semiconductor lighting is developing from concept to commercial at a speed beyond the imagination of people. Liang Bingwen said that as early as the beginning of 2006, when Nanjing first used high-power LEDs to make grid lights, downlights and cup lamps to illuminate more than 3,000 square meters of office buildings, it was only a technical demonstration and Feasibility test for the purpose of feats. Even at that time, the efficacy of white LEDs was less than 50 lumens per watt, but after careful inspection and accounting, considering the overall efficiency of the lamps, LEDs can save about 30% compared with traditional light sources. At present, the luminous efficacy of 1-watt white LEDs exceeds 130 lumens, which has become one of the most efficient light sources, almost comparable to the light efficiency of any light source, and the cost is also rapidly decreasing. This has led to the gradual expansion of the application range of LED light sources, from special lighting to general lighting. At present, the production of LED bulbs, cup lamps, spotlights, downlights and T8 tubes are gradually increasing, especially export orders are increasing. I recently traveled to the United States and was surprised to find that there are more than 10 street lights in the vicinity of my residence. So LED is really quietly entering every level of our lives, home, office, shopping malls, streets and landscapes. LED lighting is no longer a concept, but is gradually forming an industry. LED will be a new light source with strong vitality and closely related to our lives. Liang Bingwen said.
At the Guangzhou International Lighting Exhibition this year, Aoliang Lighting International Co., Ltd. demonstrated the application of LED lighting products in various real-world situations. Ao Liangliang Managing Director Chen Changde said: China's commercial LED lighting market is moving from concept to real application. In the past year, Austria’s bright growth in this field has been very rapid.
Eliminate the pace of high energy consumption and low efficiency incandescent lamps
Governments have begun to restrict the use of energy-intensive, polluting incandescent products.
China has gradually phased out incandescent lamps and accelerated the promotion of energy-saving lamps.
The electro-optical conversion efficiency of incandescent lamps is only 5%. Now the electro-optical conversion efficiency of LED lamps is generally 25% to 40%, which is much higher than incandescent lamps. LEDs can already be used in many places instead of traditional light sources. Due to the increasing awareness of energy conservation and environmental protection, governments have begun to restrict the use of energy-intensive and polluting incandescent products. The phasing out of incandescent lamps has become a consensus, and the elimination of incandescent lamps is underway worldwide, and China is also undergoing large-scale development. China's phasing out of incandescent lamps and accelerating the promotion of energy-saving lamps are a concrete manifestation. China's phasing out of incandescent lamps and accelerating the promotion of energy-saving lamps is a three-year project. This nationwide large-scale project is jointly implemented by the National Development and Reform Commission and the United Nations Development Program to reduce the annual carbon emissions of approximately 4.4 million tons due to the use of incandescent lamps.
Tang Guoqing, general manager of CREE China Market, believes that the transition from traditional lighting to LED lighting has spread around the world. In March of this year, a well-known Japanese company stopped producing ordinary incandescent light bulbs and expanded its LED lighting business. Tang Guoqing believes that LED can drive the success of lighting innovation thanks to the following factors: the first is environmental protection; the second is high light efficiency; the third is good color rendering, creating a more comfortable and safe high quality evening life for people. The fourth is color, the picture of high color saturation is an indispensable part of urban beautification; the fifth is flexibility. More user-friendly design and enjoyment of the beauty of lighting has become a new focus.
Pay attention to and face up to the standard problem
Start with the most urgent and most influential standards for industrial development, and quickly develop
Product consistency, reliability, and color rendering issues should be addressed
Indoor lighting is the market space that is most suitable for LED development in the future. However, the LED lighting market is not very mature at this stage. The standards of various manufacturers are different. The standards of national LED lighting fixtures have not yet been introduced, especially the application of LED lamps in indoor lighting. The requirements for LED light sources are high luminous efficiency and low thermal resistance. High color rendering, long life, low cost, integrated design, etc., which poses a huge challenge to LED companies that develop indoor lighting.
Liang Bingwen said that the standardization of products is very important, and the industry without standards is an immature industry. It should be said that it is a pity that our standard formulation is seriously lagging behind the development of products and markets. In this regard, we must learn from the advanced experience of the United States and other countries, start from the most urgent and the most influential standards for industrial development, and quickly develop some standards or norms that will help the development of the industry, so that industry companies can learn from and reference. It is not a lot of time to go to the standards that the industry does not need urgently, and it is not very comprehensive and very detailed from the beginning. I personally think that standards like substrate and extension are not urgently needed at present, and they may become obsolete after they are formulated. It should be clear what the most urgently needed standards for industrial development are. In which areas, for example, in the United States, the ENERGY STAR standard is important for the development of the LED lighting industry, so they quickly organized standards for LED lighting. In this way, there is no major obstacle to product promotion, government subsidies and support, and other issues that are closely related to the market. We should seriously learn from and learn from such good experiences. Liang Bingwen suggested.
In addition, attention should be paid to the consistency, reliability and color rendering of products. Liang Bingwen said that if LED lighting is to enter the field of indoor lighting, the consistency and reliability of the product and the color rendering should be improved. If the color of the light bulb is different, it will become a lantern. The color rendering index should also be Above 85, otherwise it is difficult to call a high-quality light source, and it can't match its price.
Rebuilding a suitable LED lighting system is a top priority
Correctly review LED cost issues and build a lighting system suitable for LED lighting
At present, the cost performance of LED has obvious advantages compared with some traditional light sources.
When it comes to the promotion of LED lighting products, the high cost seems to be the most praised word. Some experts believe that it is imperative to correctly review the LED cost problem and build a lighting system suitable for LED lighting. The construction industry needs to re-plan and design the lighting power supply system. Among LED lighting products, the outer casing, power supply system (power conversion), and heat dissipation system currently account for about 50% of the cost. The cost of this part should not be the cost of semiconductor lighting itself. In the future, with the advancement of chip technology, this kind of periphery The proportion of power supply systems and so on will be even larger, and it is predicted that it will account for more than 70%. If this problem is not fundamentally resolved, it will seriously hinder the pace of semiconductor lighting products entering thousands of households.
However, for the moment, the biggest problem encountered in the commercial process of LED lighting is the high cost, especially the initial purchase cost. This is the same problem that comes with other new technology-based products coming to market. At present, the price of LED light source is almost 3~10 times that of traditional light source, and some even higher. For the user, this is very difficult to accept. Although LED has the characteristics of energy saving, environmental protection and long life, and from the perspective of total cost of ownership, the current cost performance of LED has obvious advantages compared with some traditional light sources, but the purchasing power of ordinary people and the knowledge of LED light source are limited. Consumers are still very sensitive to the initial purchase price, which makes it difficult to promote LED lighting. Liang Bingwen believes that to solve this problem, we must first reduce costs by technological innovation, modularization, standardization and batch promotion. Second, the government must give certain support and subsidies to the policy so that LED lighting products can enter the mass market as soon as possible. In addition, it is also important to win the favor and favor of customers with novel shape design and other added value products.
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