Cannot Accept LED in 5 Years Will China's Lighting Status Disappear?

What is the development trend of LED at this stage? Has the timetable for replacing general-purpose products been clear? Can LED usher in the government subsidy era? Recently, at the China Underground Parking Lot Lighting Energy-Saving Industry Development Forum, Wu Ling, Secretary-General of the National Semiconductor Lighting Engineering R&D and Industry Alliance, and Zhang Wencai, Chief Engineer of the China Architectural Design and Research Institute, and other industry experts analyzed and gave a clear explanation. answer.

“If China’s enterprises engaging in traditional lighting cannot accept LED in the next five years, China’s status as a traditional lighting power will disappear.”

Zhang Wencai, chief electrical engineer of the China Architecture Design and Research Institute, said that building energy consumption accounts for 27.8% of China's total primary energy consumption, which is almost three times that of countries with the same latitude. Among them, the proportion of lighting in each energy consumption is quite high: specifically, ventilation energy consumption accounts for 40% to 50% of the total energy consumption, lighting energy consumption accounts for about 20% to 30%, and water supply and drainage Energy consumption accounts for 10% to 15%, other power consumption accounts for about 10% to 15%, and lighting ranks second. Therefore, the energy saving potential of the lighting industry is quite large. However, when Zhang Wencai participated in energy-saving renovation of office buildings in Beijing, it was found that some units did not turn on the lights or even turn on the lights in order to reduce energy consumption, but they could not meet the visual requirements simply to achieve energy saving. This is a misunderstanding and undesirable. "There are many aspects of energy conservation in lighting. Attention to the application of light sources, lamps, and accessory accessories can bring about vast energy-saving space. There are also many ways to achieve energy savings from the perspective of lighting control." He said, "Of course, for gas discharge lamps In terms of the movement detection control switch, the life of the light source is greatly affected by the number of switches. The switch is equivalent to light for several hours. Therefore, to find a better light source without affecting the number of switching lights, the LED is a Good choice."

It is for these reasons that LEDs have received increasing attention in architectural lighting. There are many examples of LED lighting used in outdoor lighting, including street lighting, garden lighting, and aviation obstacle lighting. From the power supply mode, there are external power supply methods and solar photovoltaic power supply is also used. In indoor lighting, there are many applications for emergency evacuation lighting and indication display, and some are used for parking lot lighting. Currently, the number of lightings used in offices, corridors, and stairwells is not much yet, but it has also appeared. Rapidly growing trend.

Wu Ling, Secretary General of the National Semiconductor Lighting Engineering R&D and Industry Alliance, said that at present, 80% of the world's energy-saving lamps are produced in China, but if Chinese enterprises engaging in traditional lighting cannot accept LEDs within the next five years to achieve upgrade and transformation, then China’s status as a traditional lighting power will disappear. According to Philips’ prediction, 50% of its sales revenue will come from LED by 2015, and this revenue will account for 80% of total sales revenue by 2020, which can explain the huge influence of LED in the future lighting market. .

"The LED has replaced the general lighting products with a timetable, which has also become an important basis for the government to issue financial subsidy policies."

Wu Ling said that LED products have shown an outbreak of growth, the speed of integration has accelerated, the LED growth rate has exceeded 30% for five consecutive years, the industry scale has reached 120 billion yuan, and the company has more than 4,000. In the next five years, its growth rate will remain at 38% to 40%, and the company's investment in recent years is expected to see revenue in the next two years. Wu Ling emphasized that the state financial subsidy policy will also gradually emerge from the LED's replacement timetable for general products.

"The LED products produced by different manufacturers and even the same manufacturer's different specifications of the product interface are different. China's LED standard, testing, certification system needs to be improved"

Zhang Wencai said that China's current relevant standards for LED are developed from 2005, mainly for light sources, lamp holders, control devices, lamps, LED light security, etc., but as a guide to the architectural lighting design of the relevant LED lighting standards It has been blank. He believes that the formulation of standards should include two aspects: First, through the application of standards to promote the development and improvement, and in turn promote the application of technology and progress. The second is to draw on international related technologies to promote the progress of domestic standards. He disclosed that in this revision of the “Architectural Lighting Design Standards”, the contents of LED lighting will be added to promote the application of LED in China's lighting design.

In addition to standards, advances in technology are even more important. "In terms of their optical characteristics, high light efficiency, long life, low energy efficiency, rich colors, ease of control, and safety are all aspects that we would like to see. But we must also pay attention to this. Since LEDs belong to point sources, light is concentrated, The peak light intensity is high, and it is easy to produce visual discomfort, which is the future need to carefully study and overcome.In addition, in the low color temperature, its color rendering should be improved. LED's color temperature is very wide, product consistency control Issues such as problems, continuous spectral issues, and the effects of discontinuous spectroscopy on people need further research," says Zhang Wencai.

Wu Ling also said that the current LED detection equipment method standards are not uniform, lagging behind, "We saw that different manufacturers of LED products, and even the same manufacturer of different specifications of the product interface is different, which reflects China's LED standards, The lack of testing and certification systems. In addition, the shortage of technical personnel, the absence of public R&D platforms, and the lag in the development of key materials, key equipment, and key technologies are all problems at this stage."

For the future, Wu Ling said that we must strengthen the construction of the LED industry from three aspects: The first is to regulate the market, which includes three aspects, one is to improve the standard system; the second is to establish a network-based detection platform; It is the certification of energy-saving products. Second, we must establish a common R&D platform that includes core equipment and localization of raw materials; the next generation of white light core technologies; standardized light source modules and interfaces for interchangeability, compatibility, and versatility; and interdisciplinary integration of upstream and downstream multidisciplinary technologies. system integration. The third is to strengthen personnel training, support sustainable innovation in the industry, innovate talents and team building, and set up related discipline education; actively carry out vocational qualification training certification to form an innovative talent development model. Through both "soft and hard", we can realize the long-term development of the industry's health.