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The global trend of green lighting guide
Date: 2009-08-14 09:32:19 Hits: 2714

Although the lighting industry only accounts for a small proportion of the entire economic structure, it plays a pivotal role in the cause of environmental protection. 20% of the world's electricity is consumed for lighting, and 40% of the electricity is consumed by old-fashioned incandescent bulbs. In the case of the same amount of light, energy-saving lamps not only save 75%-80% of electricity than incandescent lamps, but also have a service life of 10 times that of the latter. If old-fashioned incandescent light bulbs are replaced in the world, 700 million tons of greenhouse gases such as carbon dioxide can be reduced every year through energy saving.


Therefore, green lighting has become an important topic in today's world. At the just-concluded Hong Kong International Lighting Fair 2007, the exhibition organizer not only set up a "green lighting exhibition area" to showcase the latest environmental lighting technology, but also organized three themed seminars around green lighting technology


Dimmable energy-saving lamps are the future trend


Against the background of environmental issues, such as energy crisis, carbon dioxide emissions, global warming, and land pollution have all become factors affecting the world's political and economic patterns. In recent years, the European Union, Australia, the United States, and Canada have all legislated to promote the development of environmental protection, they are all including one policy which is to completely or conditionally restrict the use of incandescent light bulbs within a specific period of time.

At present, the mature products that can replace incandescent bulbs are energy-saving lamps. In recent years, the technology of energy-saving lamps has developed rapidly. Many technologies that were considered impossible in the past can now be realized one by one. Among them, the linear dimming technology of energy-saving lamps is expected.


MEGAMAN is a famous energy-saving lamp brands in Hong Kong. Its senior marketing manager Wu Xiaohe in Hong Kong is the keynote speaker at the seminar of this year's Hong Kong Lighting Fair. Wu Xiaohe believes that traditional energy-saving lamps have disadvantages such as unsightly appearance, large size, single color, flickering light source, and insufficient luminosity. If you switch too many times, the actual life of the energy-saving lamp will also be reduced.


At present, traditional dimmable energy-saving lamps must be installed on specific electronic ballasts, which are complex in structure and expensive

But the new technological invention makes an ordinary energy-saving lamp have the effect of dimming. The new dimmable energy-saving lamps embed the dimming device in the bulb and do not need to install additional devices. The dimming effect can be achieved only by the control of the switch.



 

In practical applications, this new type of dimmable energy-saving lamp has many advantages. Users can adjust different brightness according to the needs of different occasions to create a suitable atmosphere. For example, in an elevator room, the brightness of the lights can be adjusted to achieve the effect of lighting at ordinary times, but in the middle of the night, the brightness can be adjusted to the minimum to achieve the effect of saving energy. "

The LED technology is developing rapidly


German Timon Rupp has more than 10 years of experience in the Asian LED market and is currently the LED Marketing Director of OSRAM Asia. Timon once replaced traditional light sources with innovative LED solutions, and now his primary goal is to establish LED technology for solid-state lighting system solutions in the Asian general lighting market. As one of the keynote speakers at the seminar, Timon believes that although LED development is steadily advancing along the integrated chain from chips, packaging to LED luminous bodies, there are still many technical problems that need to be resolved.




Timon said that in the past, due to technical limitations, the role of LEDs was only decoration, but in the future, LEDs will be used as a light source and will gradually replace traditional light sources. The new LED combines the advantages of traditional sodium lamps, metal halide lamps, energy-saving lamps and other light sources, and has the characteristics of high light efficiency, low energy consumption, long life, and safety. More importantly, the LED does not contain mercury and lead, and the waste will not harm the environment. It is a very good green light source.


From Indonesia, Indonesian Chinese Nam, who has 27 years of experience in the lighting industry, has taken a reserved attitude towards LEDs. Nam has been tracking LED technology for 5 years. He believes that the current LED is only a light signal, not a light source in a pure sense. Whether in terms of stability or lighting effects, LEDs cannot yet replace traditional light sources, so they can be only used  for outdoor decorative lighting.


Be wary of China falling into the "green lighting" misunderstanding


Another guest speaker at this year's Lighting Fair Symposium, Professor Xu Shuyuan from the Department of Electronic Engineering of the City University of Hong Kong, gave a keynote speech on "Re-examination of Energy-saving and Environmental Protection Issues in Lighting References". Professor Xu specially reminded that China is currently falling into the "misunderstanding of green lighting."





Professor Xu believes that the concept of "green lighting" in China's lighting industry overemphasizes the application of energy saving, while ignoring the environmental pollution caused by discarded lighting products. In fact, energy saving can only reduce carbon dioxide emissions, but the environmental damage caused by discarded lighting products is far greater than the greenhouse effect.


According to estimates by Greenpeace, about 20-50 million tons of electronic products are produced in the world each year, and most of the scrapped electronic waste is shipped to developing countries, 70% of which are shipped to China. There are three main types of electronic waste: computers, batteries and lighting electronics.




These e-wastes have caused great pollution to the environment. An electronic energy-saving lamp can only last for two years, but the toxic chemical components in it, such as mercury and lead, will pollute the environment for thousands of years. "Energy saving does not mean'green' unless we can reduce the emission of e-waste and toxic chemicals."




Professor Xu suggested the use of energy-saving lamps with separate lamps and ballasts, and the use of magnetic ballasts with a lifespan of 30 years. In this way, the ballast can be recycled and reused, effectively reducing the emission of e-waste. Professor Xu also called on the legislature to formulate regulations to encourage the use of magnetic ballasts, and the government should also attach importance to the establishment of e-waste treatment facilities to make green lighting truly "green."

 


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