Portland, more than 55000 sets of high pressure sodium street lights LED

According to the "Portland Herald" reported that the U.S. city of Portland, Oregon has begun to install light-emitting diode (LED) lamps to replace the more than 55 thousand high-pressure sodium lamp.

Michael, director of the Department of sustainable development in Portland, Armstrong (Michael), said the project is expected to last two years, costing $18 million 500 thousand, is the largest energy conservation projects in Portland so far.

LED lighting is expected to save $1 million 500 thousand a year for the city's energy and maintenance costs. Currently, street lamp power consumption accounts for about 1/5 of the city's electricity. The LED lamp will reduce the energy consumption of each lamp by about 60%, which means that a total reduction of the city's electricity usage by 12%, that is, about 20 million kilowatt hours per year.

In addition, LED lights with a 10 year warranty period. 10 years later, savings due to reduced power use and reduced maintenance should be able to effectively cover the cost of the installation of lamps and lanterns.

At the same time, LED can also open up programmable opportunities. Scott Cadel, executive chairman of the Tucson International dark sky Association (Scott Kardel) said that maybe one day, technicians can instantly adjust the brightness of the light to save energy in the absence of vehicle driving, may also be closed or open street, to lead the police to deal with an emergency.

Another change in LED street lights will be a significant reduction in light pollution. LED is basically like a spotlight, rather than a diffuse pink and orange light, like a high-pressure sodium lamp. 29 watt LED lamp every 100 watt lamp replaced by 12 lights, they can set point to the sidewalk or roadway.

The installation of LED provides funding through the 2012 City Council approved bond measures.

For more information about LED, please click on China LED network or pay attention to WeChat public account (cnledw2013).