Did I get the entire area? It's been 35 years, however I have been. Beautiful, clean and modern city.
Brighter isn't always good. Check out the Dark Sky Association's website.
Are Detroits LED's narrow spectrum???
http://darksky.org/lighting/lighting-basics/
Still looking for type of LED lights used. Found a report prepared for the US DOE that summarizes the change over. Est. 2.9 Million dollar annual savings in energy costs!
Pretty impressive.
Also pointed out deficiencies in the old system including manual switches that had to be cycled twice daily which left some lights on during the day because no-one was available to turn them off!
Here' s the link: https://energy.gov/sites/prod/files/...ng-detroit.pdf
As a Canadian I can't get over how small Ottawa is.
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