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I don't understand, you prefer the new LED lights but also like reduction in light pollution? The LEDs way brighter, so I'd think you'd prefer older lights. I'
by davidmurdoch 1y ago
I don't understand, you prefer the new LED lights but also like reduction in light pollution? The LEDs way brighter, so I'd think you'd prefer older lights.
I'd guess about 20% of the lights in and around Orlando are purple now. Maybe the heat and UV makes it worse here?
- worik 1y agoModern LEDs direct more of their light down, less up to the sky, so yes, much less light pollution Also they are better suited to their job so need less light. Sodium lights are nowhere near as flexible so are worse, mostly, on both counts
- davidmurdoch 1y agoThey're definitely far far brighter. Here a photo of an old sodium vapor lamp next to a (failing) LED near me: https://photos.app.goo.gl/vwidbJUmG997VLRN7 https://photos.app.goo.gl/vwidbJUmG997VLRN7 As far as directional lighting patterns go, that's a matter of the lamp design. Sodium vapor could be housed in a reflector that directs nearly all of it's light downwards. I'm not against LED technology being used though, just the rampant failing LEDs and the obnoxious brightness & color they produce. Also not fond of the futuristic looking light pole design they seem to always use. For astrophotography, sodium vapor's color cast is very easy to filter out, whereas the broad spectrum LEDs are not, especially when they don't all emit the same frequencies.