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The ones around here direct the light downwards at the street instead of almost-every-direction like the old ones did, so it's kind-of true that the LED ones ha
by Izkata 4y ago
The ones around here direct the light downwards at the street instead of almost-every-direction like the old ones did, so it's kind-of true that the LED ones have less light pollution (I know I'm getting a hell of a lot less light into my windows), but it's because of the lamp shape and not that they're LEDs.
- throwawayben 4y agoyes this was my observation, since the ones outside my house were replaced I have much less light into my house and I can see the stars. I assumed it must be some factor of the LED design that makes it easier to direct downwards though
- actionfromafar 4y agoFor astronomy, the pollution upwards is the problem. For insects and mammals and birds, it's the spectrum, the colour, which is the problem.
- actionfromafar 4y agoHere it's the other way around. The new shapes are bonkers.