Also -- stop replacing high pressure sodium with white LED. The blue light from white LED convinces your brain that it's daytime, whereas the orange from HPS is interpreted as sunset. Also, when the street lights are all orange, you can tell whether that light coming from around the corner is a streetlamp or another car's headlights. I get that LED is more efficient, but at least make the LEDs orange.
Bring back low pressure sodium, their spectrum is so narrow that when I was young I had a toy telescope which came with a filter that removed all light pollution and it was 🌃.
Also -- stop replacing high pressure sodium with white LED. The blue light from white LED convinces your brain that it's daytime, whereas the orange from HPS is interpreted as sunset. Also, when the street lights are all orange, you can tell whether that light coming from around the corner is a streetlamp or another car's headlights. I get that LED is more efficient, but at least make the LEDs orange.
It's not hard to color LEDs. Just look at tiktok
just look at my GAMING RIG
White LED is not even more efficient :sadness:
Bring back low pressure sodium, their spectrum is so narrow that when I was young I had a toy telescope which came with a filter that removed all light pollution and it was 🌃.