![TIL since 2020, white LED streetlights have been turning purple because of a defect during the manufacturing process between 2017 and 2019. The yellow phosphor coating was delaminating, and the blue LED TIL since 2020, white LED streetlights have been turning purple because of a defect during the manufacturing process between 2017 and 2019. The yellow phosphor coating was delaminating, and the blue LED](https://external-preview.redd.it/til-since-2020-white-led-streetlights-have-been-turning-v0-XceV_nRvI4tIDDuPzkNpiRFf4JlSUJPE5a_k9i3GxRs.jpg?auto=webp&s=ab76e5790072a11cac30326a0c152daa78bab07d)
TIL since 2020, white LED streetlights have been turning purple because of a defect during the manufacturing process between 2017 and 2019. The yellow phosphor coating was delaminating, and the blue LED
![LED Street Lights: Good for the Environment, Bad for Night Vision? Karl Citek, OD, PhD, of the AOA, Sheds Light on the Topic - Ocular Health LED Street Lights: Good for the Environment, Bad for Night Vision? Karl Citek, OD, PhD, of the AOA, Sheds Light on the Topic - Ocular Health](https://clf1.medpagetoday.com/assets/images/resource-center/cs-led-street-lights-63502.jpg)
LED Street Lights: Good for the Environment, Bad for Night Vision? Karl Citek, OD, PhD, of the AOA, Sheds Light on the Topic - Ocular Health
![Why are there blue lights on top of Dallas' streetlights by the Trinity River? Curious Texas sheds some light Why are there blue lights on top of Dallas' streetlights by the Trinity River? Curious Texas sheds some light](http://thumbor-prod-us-east-1.photo.aws.arc.pub/Vfn8YcXwmJJeCglm2748uaoYSUs=/arc-anglerfish-arc2-prod-dmn/public/A2YH7EJN7Z2BXURIS6IBQHUQHM.jpg)
Why are there blue lights on top of Dallas' streetlights by the Trinity River? Curious Texas sheds some light
![These blue street lights are a little weird, but made for some really neat photos of the N : r/VelosterN These blue street lights are a little weird, but made for some really neat photos of the N : r/VelosterN](https://i.redd.it/wjvahc6xpjr81.jpg)
These blue street lights are a little weird, but made for some really neat photos of the N : r/VelosterN
![Why is Japan Turning Blue at Night? More and More Streets Being Draped in Peacefully Bizarre Azure Lights | SoraNews24 -Japan News- Why is Japan Turning Blue at Night? More and More Streets Being Draped in Peacefully Bizarre Azure Lights | SoraNews24 -Japan News-](https://soranews24.com/wp-content/uploads/sites/3/2012/04/street-light-blue-japan01.jpg)
Why is Japan Turning Blue at Night? More and More Streets Being Draped in Peacefully Bizarre Azure Lights | SoraNews24 -Japan News-
![What is with the new blue street lights? In no way can these be better than the white LED lights. : r/LosAngeles What is with the new blue street lights? In no way can these be better than the white LED lights. : r/LosAngeles](https://preview.redd.it/f6ponftybej91.jpg?auto=webp&s=3af4d67d27ceacedb384ba323dc3e0fb9414c196)