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University of Manchester researches on street light technology

Author : Henry Huang Date : 3/18/2013 7:34:18 AM

It is reported that the University of Manchester in the United Kingdom and a lighting company are working together to study the advantages of LED technology used in street lighting.

LED with long expectancy lifespan, they do search on the LED street light life last more than 10 years, which is more than four times of ordinary street lamp. This means that do not require regular frequent replacement, thereby reducing the potential for traffic disruption, reduced maintenance costs paid by the government.

If the LED lighting has widely applications, it can reduce energy consumption by 25% -50%. But when need 12,000 lumens or more, heating and other electricity-related issues will be obstacles restricting the LED technology.

Now the problem need to be solved by Researchers is, how to reduce the heat generated by the tightly compressed LED inside lamp. LED module will be used outdoor, so it also needs to consider the actual environmental factors, such as the possibility of critical heat sink being nesting by bird. Also there is regulatory issues, for there are regulations for lights dazzling and the light pollution, and defined area can be installed LED light, these are all the challenges.

Under normal operation, the LED light output is a gradual reduction process, and this process will be continued. The light output reduced is because the efficiency is lower, or the light path of compressed LED package is reduced. However, as long as there is no overload, after 50,000 hours or 10 years’ work, LED street light also can reach 70% of the original light output.