Pittsburgh might install LED streetlights city-wide
Study estimates $1 million in annual savings, but light pollution and LED's inability to give off heat are issues.
BRIGHT LIGHTS: Pittsburgh officials worry that a total switch to LED streetlights will make the streets too bright after dark. (Photo: caseywest/Flickr) 
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Choosing new technology over old, a University of Pittsburgh study recommends that Pittsburgh replace its 40,000 street lights with LED lighting. LED -- lighting would offset negative environmental impacts of the LED Manufacturers, manufacturing process by a factor of 10.
LED streetlights are gaining momentum. There are a lot of poor quality fixtures on the market. One key advantage is the gradual elimination of light pollution. We are a US manufacturer of LED streetlights. We would like you to read the following study by Missouri State University: http://www.missouristate.edu/assets/econ/World_Light_Pollution.pdf
Millennia Technologies Inc.
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I have yet to see LED lights like the ones on sydney street. They cover a large area and are bright and clear. Would like to see them around.
None of those potential problems sounds anything like a deal breaker to me, especially compared to the financial and green drawbacks of standard high pressure sodium street lights. The LED's are too blue? Put a colored lens on the cover. They're too bright? Make the lens thicker and a little more opaque. Need to give off more heat? Install a small, switchable heating coil in the light housing.... More
