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all around the world, over the course of many years, a bunch of white street and parking lights slowly turned blue/purple, when a special yellow phosphor coating that turned blue light into white gradually delaminated. nobody knew this defect would happen, it just took time. i think that's beautiful

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My city eventually replaced them all, but for a while it was real sweet pretending my small midwestern city was a cyberpunk nightscape

Whenever my 4yo daughter and I come across one we shout out "purple light!" I'm bummed that they are slowly getting replaced. Fingers crossed that future bulbs have the same flaw.

There are some places in the Chicago suburbs where it happened to a bunch of lights more or less at the same time. I spent a while trying to figure out why the roads department would install purple lights, it looked deliberate.