I found this interesting. Other more-experienced members here probably already know this but, it might be new to others.
Apparently, human eyesight shifts in spectral sensitivity after dark.
“As day turns to night and your photopic cone-based vision turns into scotopic, rod-based vision, your sensitivity shifts a little bit blue. And so very blue-rich light at night comes off as really harsh and glaring..."
I also found interesting the whole discussion re: outdoor LED lighting color temp of interest.
Yh in the UK they’re putting these 6000ish K streets light everywhere and I hate it. I think they’re trying to achieve maximum efficiency but what’s the point if it’s making visibility worse…
My neighbor doesn’t get it, and thinks only of himself. He installed 6000k+ super bright outdoor floodlights that light up the whole corner of the neighborhood like a baseball stadium. In fact, driving down the street towards his house, it looks like someone coming at you with their highbeams on. Trying to think of how to be diplomatic enough to get him to either shut them off, re-aim, and install much warmer bulbs.
Those cheap Home Depot outdoor flood lights should be illegal. What a light pollution cancer they’ve become.