According to the Labor newspaper reported, Shanghai now has 380,000 street lights which are expected to gradually change the “core”. Reporter yesterday learned from the 2011, China International LED Industrial Technology Exhibition and Forum, Shanghai is making great efforts to build a “green light”, and gradually promote led tubes. Yan’an East Road Tunnel, Road Tunnel and part of the subway platform will be the first use.
“Energy conservation is the greatest benefit of street lights upgraded and Li Shu-Chi, comprehensive assessment of manager of the Shanghai Semiconductor Lighting Engineering Research Center, said a high-pressure sodium lamp power of about 400W, and the same LED lights need only 150W, the city is currently 30 more than one million street lamp to statistics, the annual electricity savings are considerable. In addition, compared to traditional lights, led tubes lights have the advantages of energy saving, controlled, long life. “Traditional street lights suddenly bright flickered and very easy to reduce the lamp, LED lights without this concern. In addition, the traditional street lights, road surveillance cameras shoot may be a mass of black, once fitted with LED street lamp, the camera becomes very clear to the police for future investigation and convenient for evidence collection.
At present, Shanghai led tubes are still in a small scale pilot, the Yangtse River Tunnel Bridge Road and Wuning Road, and the road sections have been in use. Li Shuzhi says frankly, in practical use, researchers found, LED street lamp has light emitting efficiency needs to be improved, difficult to overcome the high temperature, dust pollution and other harsh environment, high cost.In addition, there is no standard interface leading to major manufacturers of all kinds of LED lighting products, hard to unify.
Li Shu-Chi said the 3 m of low-bar led tubes technology is approaching maturity, but the LED lights installed in an elevated have not found a “suitable targets”. Last year, Shanghai rail transit vehicles and platform height lighting system development and its large-scale applications”. Viaduct lighting research and development and application of “research projects, including R & D of LED tunnel lighting and street lamps, can achieve a light source. The average life expectancy of 50,000 hours.