A problem too often overlooked is how the yellow-tinted light of high-pressure sodium (HPS) fixtures, which are typically found lighting streets and some parking lots, impacts your perception of the ...
DR. M. LUCKIESH and Dr. F. K. Moss, of the Lighting Research Laboratory of the General Electric oCompany of America, reported at a meeting of the Optical Society of America on October 17 an ...
FirstEnergy Corp.’s FE unit Penelec converted more than 2,300 high-pressure sodium streetlights into smart LED streetlamps in downtown Erie and along the Bayfront during the period between November ...
And it will have taken about eight years in all to swap out all of those old-style streetlights across Mankato with high-efficiency LED lights. It was the summer of 2017 when a private electrician ...
The new LED lights cost about the same as the old high-pressure sodium lights but will last about 15 to 20 years. Years in the making, the warm glow of brighter streetlights are finally flickering on ...
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