Traffic light manufacturers are shifting more to the blue end of the spectrum on... | Hacker News

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		SmellyGeekBoy on Aug 7, 2018 \| parent \| context \| favorite \| on: Energy Saved, Sleep Lost: The Unintended Consequen... Traffic light manufacturers are shifting more to the blue end of the spectrum on the "go" light for this very reason.

flyinghamster on Aug 8, 2018 [–]

I've noticed that myself (especially if there's a gas station nearby with a green-LED price sign). The green traffic light is, at least to my eyes, noticeably blue-green/aquamarine, where the gas station sign is emerald green.

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