> 1. Much blue-er and so WAY worse for people's circadian rhythms There is always garbage out there, regardless of product category. For streetlights you can g

> 1. Much blue-er and so WAY worse for people's circadian rhythms There is always garbage out there, regardless of product category. For streetlights you can get good products. Acuity's Autobahn Series ATB0: > White Light: Correlated color temperature - 4000K, or optional 2700K, 3000K or 5000K, all 70 CRI * https://img.acuitybrands.com/public-assets/catalog/122046/atb0_.pdf?abl_version=01%2f19%2f2022+05:11:15&DOC_Type=SPEC_SHEET https://img.acuitybrands.com/public-assets/catalog/122046/at... * https://americanelectriclighting.acuitybrands.com/products/detail/122046/american-electric-lighting/autobahn-atb0/autobahn-led-cobra-head https://americanelectriclighting.acuitybrands.com/products/d... * Via: https://www.darksky.org/our-work/lighting/lighting-for-industry/fsa/fsa-products/#!/Roadway/c/12536252 https://www.darksky.org/our-work/lighting/lighting-for-indus... > 2. Much "sharper" in it's shadows, so you go from blindingly bright to pitch black without your eyes having a chance to adapt, making it unsafer, and making the shadows "darker" Lighting and crime (prevention) is debatable: * https://www.darksky.org/light-pollution/lighting-crime-and-safety/ https://www.darksky.org/light-pollution/lighting-crime-and-s... Further, glare can blind people so as to not being able to see in darker areas: * https://cescos.fau.edu/observatory/lightpol-security.html#GlarebombsNoSec https://cescos.fau.edu/observatory/lightpol-security.html#Gl... > 3. Much harder to filter out for astronomers IMHO we can start worrying about this after we actually reduce light pollution. If we're at the point that astronomers can actually do useful work around large urban centres then let's start worrying about spectrum. As it stands they probably can't do much of anything now.