San Francisco is beginning a city-wide project this year to replace 18,500 high-pressure sodium street light fixtures with LED lights. These new fixtures will use 50 percent less energy and will cost less to maintain since they only have to be replaced every 15 - 20 years while the current bulns have to be replaced every 4 years. The change of these lights are estimated to take approx. 30 mintues for every street light fixture. The entire project will be completed in abouty 14 months. The benefits to these new light fixtures are more than just energy and money savers. They will have smart controllers that allow the city to remotely monitor and adjust their light level and will be able to alert the maintenance crew when the lights have failed or are about to fail.
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