Sodium light is actually pretty great from light pollution perspective, because it is extremely easy to filter it out, as it is a very narrow band. Astronomers prefer sodium lamps, for example.
Dead moths prefer sodium lamps too, or something. Currently, LEDs are kind of stupid, too. The parking lot outside my home has fixtures with builtin LEDs which will last, like forever. So there's no need to make the LEDs replaceable like a bulb had to be.
Except they do break (they dim into a faint glow, and the brown out completely) and they have to replace the whole fixture.
> Dead moths prefer sodium lamps too, or something.
Isn't that just because it is very hot so they die?
> Except they do break (they dim into a faint glow, and the brown out completely) and they have to replace the whole fixture.
That's the big lie of LED industry; we can make ones lasting 50-100k hours... except we won't cos that would put price up by a bit and get out-competed.
Except they do break (they dim into a faint glow, and the brown out completely) and they have to replace the whole fixture.