News for hackers. Stuff that matters.

A comment on Some cities are taking another look at LED lighting after AMA warning. Parent comment

Re:Some cities are taking another look at LED lighting after... by 0xffff2 on Sunday September 25, 2016 @04:13PM (#12577178)
Really? I thought one of the major advantages to LED street lighting is that it is much more directional, so it leaks less light into the sky.
[ Parent | on HN ]
Re:Some cities are taking another look at LED lighting after... by jkmcf on Sunday September 25, 2016 @08:49PM (#12578388)
20+ years ago, sodium (?, same as below?) lamps were suggested but supposedly people didn't like how things looked (IIRC) in the light.

http://www.flagstaffdarkskies.org/for-wonks/lamp-spectrum-li... says low pressure sodium lamps significantly improve star viewing compared w/ LED due to the narrower spectrum.

Downvote science, bitches.

[ Parent | on HN ]