Iowa DOT has an interesting explanation for the "blue" street lights🤔🤔🧐🧐
(media.greatawakening.win)
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The led's are actually BLUE and the phosphorus is yellow (blue passing through yellow results in white) the phosphorus is burning away...resulting in some phosphorus being left which emits a purple color light output and eventually will be blue light once the phos is all burned off.
Why only at intersections? In my closest city I drive through everyday the blue purple lights are in all the corners of major intersections. All other lights leading up the intersection are normal…weird