On November 29th, the debate on the application status of high-power LED streetlights sponsored by China Lighting Network, China Lighting Association Outdoor Lighting Professional Committee and China Lighting Society Transportation Lighting and Optical Signal Committee was held at Guangdong International Hotel, Song Xianjie, Qian Keyuan The representatives of the pros and cons, led by Ren Yuanhui and Zhang Haijun, have heated debates on the five aspects of energy-saving features, applicability and maintainability of LED street lamps. It is reported that nearly 300 people including representatives of NVC, GP, GE, Philips, Shifu, Osram (China), Jiuzhou Optoelectronics, and other famous domestic and foreign lighting companies, scientific research personnel and city street lamp management offices attended the debate.
Fangfang: agree with the current stage of high-power LED street lights for road lighting
â– Song Xianjie, Director of the Transportation Lighting and Optical Signal Committee of the China Lighting Society
â– Qian Keyuan, deputy director of Dongguan Qinshang Optoelectronics Research Institute
â– Chen Haijun, Technical Director of Ningbo Liaoyuan Lighting Co., Ltd.
â– Shi Jie, Chairman of Jiangsu Shifu Photoelectric Co., Ltd.
â– Shao Jiaping, Technical Director of Shanghai CREE Optoelectronic Development Co., Ltd.
Counterparty: Oppose the current high-power LED street light for road lighting
â– Ren Yuanhui, Honorary Director of the Indoor Lighting Professional Committee of the China Lighting Society
â– Zhang Haijun, Chairman of the Shanghai Lighting Society
â– Li Jing, Chief Consultant, Institute of Building Physics, China Academy of Building Research
â– Lin Zhengang, engineer of Guangzhou Street Light Management Office
â– Xie Junyan, Director of Safety Quality Department of Shanghai Street Light Management Office
Topic 1: Is current LED street light saving compared to high pressure sodium lamps?
â– Fangfang: LED street lights are more than 20% energy efficient
The traditional street lamp specifications are basically 150W, 250W, and 400W, which cannot cover the needs of various grades and various lanes, and often cause waste. According to the test, the luminous efficiency of the LED street lamp can be 70LM/W, the actual power of the traditional street lamp is about 280W, and its efficiency is 75LM/W. Taking into account the utilization factor, the same lighting effect, LED overall energy saving of more than 20%.
â– Anti-party: high-power LED energy efficiency is lower than high-pressure sodium lamp
High-power (≥250W) LED street light has the best light efficiency. The best domestic enterprise has reached 56-58LM/W, and the effective light efficiency of sodium lamp is about 70-75LM/W. Therefore, for high-power street lamps, the current LED is more energy efficient than sodium lamp. Be lower. And the low power (≤150W) LED street light is calculated according to 56-58LM/W, then the LED can achieve energy saving 10%-20% than the sodium lamp.
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Elevators play a vital role in people's daily life. Whether it is a commercial office building or a residential building, the elevator goes up and down every day, almost all day long, which is a test of the elevator wiring harness and safety insurance system. In recent years, we have It is learned from the news that many elevators have suffered personal injury accidents, most of which are aging elevators, or problems with the system, resulting in accidents.
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