Down in Timaru, New Zealand, a new LED street light outside a family home had some really bad effects on a resident. His father, an astronomer, did lighting tests over the next two years and made some interesting discoveries about blue light. https://i.stuff.co.nz/national/116865102/effects-of-led-streetlights-on-autistic-son-led-damien-mcnamara-on-dark-sky-campaign
(Score: 2) by ChrisMaple on Sunday November 03 2019, @08:43PM
https://www.lifeextension.com/magazine/2019/12/shield-eyes-from-toxic-blue-light [lifeextension.com] cites several studies on the harm of blue light.
Recognize also that this is a relatively new complaint. You're expecting too much if you think there should already be a large body of research on the subject.