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Ask Mr. Answer Person: More about LED traffic lights

Posted: Tue, Nov 20, 2012 10:36 AM
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Paul e-mails Mr. Answer Person: "Not long ago, the city spent a bunch of money on the new LED stoplights allover town. I am still of the belief this was a fabulous idea.  They are much easier to see, especially on Water Street during certain times of the day.  However, there seems to have been an issue with most of them right from the time of installation, with individual LEDs within each color, not working, in some case close to half of them not working at the Mechanic and Broadway light, and you could always tell when the Left Turn light at Heivly and College was going to change as the green lights would flicker.  To get to the point, I have now noticed that the LEDs are now being replaced with the Bulb and Lens fixtures again.  Why are we seeming changing back to what was replaced by a far superior stop light array?  Was there an issue with the manufacturer?   Were they installed incorrectly?  Is there no warranty to have them."

Mr. Answer Person says: We answered some other these questions earlier (http://www.decorahnews.com/archived-stories/2012/08/3322.html):
Decorah City Manager Chad Bird says once the lights in a full LED lens begin to flicker, it means the lens is getting close to the end of its life and is nearly ready for replacement.  However, once this happens, the entire light assembly must be replaced--it is NOT possible to replace the individual LED components."

The City of Decorah is NOT replacing burned-out LED lights with the Bulb and Lens fixtures.  It's possible the replacement bulbs have a slightly different look than the old bulbs, but they ARE LED bulbs.

The LED lights cost roughly $180 each, so the city understandably wants to keep partly burned-out lights in use as long as they do not pose a safety hazard.  Once they do, the lights are being replaced with new LED fixtures.

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