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I wish them all the best. There's nothing like a clear dark sky. Meanwhile, my neighbors are all doing their best to recreate daylight brightness all through t

I wish them all the best. There's nothing like a clear dark sky. Meanwhile, my neighbors are all doing their best to recreate daylight brightness all through the night with flood lights in their driveways, begging for ever brighter street lights, etc. I feel like more than half the population would truly end nighttime if given the opportunity.

gs17 5y ago
>begging for ever brighter street lights And near me that seemed to mean they also need to be cool white LEDs (which, being more efficient than what they replaced, will be run brighter) tilted slightly upward so they shine both into the sky and second story bedrooms.
- dashundchen 5y ago
  Agreed. I've seen plenty of street lights that have diffuse, warm/yellow LEDs and a good downward pattern. But my city keeps insisting on installing the blinding cool LEDs that cast everywhere! I don't get who thinks these look good, except that some people associate the cool temperature = modern. Then again, when I walk around at night, I see a lot of houses and apartments lit up with wildly different bulb temperatures, or cool color temperatures in their living rooms. It would drive me crazy but it's possible some people don't notice these things.
  - stordoff 5y ago
    > cool color temperatures in their living rooms. It would drive me crazy but it's possible some people don't notice these things That's a deliberate choice for me. I have colour temperature adjustable lighting, and prefer the cooler temperatures (~6500k), particularly when reading.
  - kelnos 5y ago
    I moved into my current home about 2 years ago, and it's been a slow process to replace cooler lighting with warmer lighting. Part of it is that it isn't a huge priority for me, other part is that it feels bad to take out and toss perfectly working bulbs just because they're the wrong temperature.
    - GekkePrutser 5y ago
      What I did is used the cooler bulbs in different rooms. Like my electronics lab where I need strong light to solder, and the bathroom where I don't spend a lot of time anyway.
  - SteveGerencser 5y ago
    We do this in our house. We have intentionally done this based on the use of the room. Laundry room/kitchen/bathroom, light that sucker up. Living room or bedroom, not so much.
    - dashundchen 5y ago
      Yeah temperature by room makes sense to me. Or even the adjustable temperature bulbs to fit mood/time of day. I'm referring to when I'll see a dim warm yellow bulb in a lamp, with the most sterile cool bulb in a ceiling fixture, all in the same room.
      - micromacrofoot 5y ago
        I use yellows in lamps and blues in the ceiling. The ceiling lights are turned on only when I need to really see what's going on (cleaning, can't find something, etc)... most of the time I'm using the lamps.
  - GekkePrutser 5y ago
    A bit off topic but I never understood why the higher Kelvin numbers are called cooler. The bluer hues are actually the colours from hotter stars hence the higher kelvin numbers (which are temperatures) Anyone knows where the cool/warm terminology comes from? And yeah I hate when my bulbs aren't matched. It already annoys me that I can't exactly colour match my IKEA RGB bulbs with the warm/cool ones. They just won't do the exact same hue.
    - steanne 5y ago
      https://en.wikipedia.org/wiki/Color_temperature https://en.wikipedia.org/wiki/Color_temperature Color temperatures over 5000 K are called "cool colors" (bluish), while lower color temperatures (2700–3000 K) are called "warm colors" (yellowish). "Warm" in this context is an analogy to radiated heat flux of traditional incandescent lighting rather than temperature. The spectral peak of warm-colored light is closer to infrared, and most natural warm-colored light sources emit significant infrared radiation. The fact that "warm" lighting in this sense actually has a "cooler" color temperature often leads to confusion.
throw0101a 5y ago
There are Dark Sky approved products that aim down, reduce glare, and have the proper (<3500K) colour temperature: * https://www.darksky.org/our-work/lighting/lighting-for-industry/fsa/fsa-products/ https://www.darksky.org/our-work/lighting/lighting-for-indus...
- oblio 5y ago
  Interesting, I'm curious if it's just that brand ( https://www.darksky.org/our-work/lighting/lighting-for-industry/fsa/fsa-products/#!/Autobahn-ATB0-ATB2/p/79936518/category=0 https://www.darksky.org/our-work/lighting/lighting-for-indus... )or other designs like it. My street has a very similar design, I wonder if it's compatible with what you're saying, maybe just not certified.
  - throw0101a 5y ago
    The terminology in question is "high/full cutoff": * https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/lightpollution/lightpollution.asp https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/light... * https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/lightpollution/cutoffclassifications.asp https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/light... There are standards (RP-33-99, RP-2) from folks like: * https://en.wikipedia.org/wiki/Illuminating_Engineering_Society https://en.wikipedia.org/wiki/Illuminating_Engineering_Socie... * https://energycodeace.com/site/custom/public/reference-ace-2019/index.html#!Documents/64mandatoryrequirements.htm https://energycodeace.com/site/custom/public/reference-ace-2... * https://www.shine.lighting/threads/122/ https://www.shine.lighting/threads/122/ * https://www.denvergov.org/files/assets/public/doti/documents/standards/pwes-012.2-street_lighting_design_guidelines.pdf https://www.denvergov.org/files/assets/public/doti/documents... IES TM15 11: * https://www.youtube.com/watch?v=EVPbuq4g5W4 https://www.youtube.com/watch?v=EVPbuq4g5W4 * http://www.escolighting.com/PDFfiles/BUG_rating.pdf http://www.escolighting.com/PDFfiles/BUG_rating.pdf Generally you don't light to illuminate more that 60˚ from the nadir of the lamp: * https://en.wikipedia.org/wiki/Nadir https://en.wikipedia.org/wiki/Nadir
BurningFrog 5y ago
Having grown up with 24 hour daylight from May-August, I would absolutely end nighttime if I could! Permanent daylight really makes life a LOT better.

gs17 5y ago

>begging for ever brighter street lights And near me that seemed to mean they also need to be cool white LEDs (which, being more efficient than what they replaced, will be run brighter) tilted slightly upward so they shine both into the sky and second story bedrooms.

dashundchen 5y ago
Agreed. I've seen plenty of street lights that have diffuse, warm/yellow LEDs and a good downward pattern. But my city keeps insisting on installing the blinding cool LEDs that cast everywhere! I don't get who thinks these look good, except that some people associate the cool temperature = modern. Then again, when I walk around at night, I see a lot of houses and apartments lit up with wildly different bulb temperatures, or cool color temperatures in their living rooms. It would drive me crazy but it's possible some people don't notice these things.
- stordoff 5y ago
  > cool color temperatures in their living rooms. It would drive me crazy but it's possible some people don't notice these things That's a deliberate choice for me. I have colour temperature adjustable lighting, and prefer the cooler temperatures (~6500k), particularly when reading.
- kelnos 5y ago
  I moved into my current home about 2 years ago, and it's been a slow process to replace cooler lighting with warmer lighting. Part of it is that it isn't a huge priority for me, other part is that it feels bad to take out and toss perfectly working bulbs just because they're the wrong temperature.
  - GekkePrutser 5y ago
    What I did is used the cooler bulbs in different rooms. Like my electronics lab where I need strong light to solder, and the bathroom where I don't spend a lot of time anyway.
- SteveGerencser 5y ago
  We do this in our house. We have intentionally done this based on the use of the room. Laundry room/kitchen/bathroom, light that sucker up. Living room or bedroom, not so much.
  - dashundchen 5y ago
    Yeah temperature by room makes sense to me. Or even the adjustable temperature bulbs to fit mood/time of day. I'm referring to when I'll see a dim warm yellow bulb in a lamp, with the most sterile cool bulb in a ceiling fixture, all in the same room.
    - micromacrofoot 5y ago
      I use yellows in lamps and blues in the ceiling. The ceiling lights are turned on only when I need to really see what's going on (cleaning, can't find something, etc)... most of the time I'm using the lamps.
- GekkePrutser 5y ago
  A bit off topic but I never understood why the higher Kelvin numbers are called cooler. The bluer hues are actually the colours from hotter stars hence the higher kelvin numbers (which are temperatures) Anyone knows where the cool/warm terminology comes from? And yeah I hate when my bulbs aren't matched. It already annoys me that I can't exactly colour match my IKEA RGB bulbs with the warm/cool ones. They just won't do the exact same hue.
  - steanne 5y ago
    https://en.wikipedia.org/wiki/Color_temperature https://en.wikipedia.org/wiki/Color_temperature Color temperatures over 5000 K are called "cool colors" (bluish), while lower color temperatures (2700–3000 K) are called "warm colors" (yellowish). "Warm" in this context is an analogy to radiated heat flux of traditional incandescent lighting rather than temperature. The spectral peak of warm-colored light is closer to infrared, and most natural warm-colored light sources emit significant infrared radiation. The fact that "warm" lighting in this sense actually has a "cooler" color temperature often leads to confusion.

throw0101a 5y ago

There are Dark Sky approved products that aim down, reduce glare, and have the proper (<3500K) colour temperature: * https://www.darksky.org/our-work/lighting/lighting-for-industry/fsa/fsa-products/ https://www.darksky.org/our-work/lighting/lighting-for-indus...

oblio 5y ago
Interesting, I'm curious if it's just that brand ( https://www.darksky.org/our-work/lighting/lighting-for-industry/fsa/fsa-products/#!/Autobahn-ATB0-ATB2/p/79936518/category=0 https://www.darksky.org/our-work/lighting/lighting-for-indus... )or other designs like it. My street has a very similar design, I wonder if it's compatible with what you're saying, maybe just not certified.
- throw0101a 5y ago
  The terminology in question is "high/full cutoff": * https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/lightpollution/lightpollution.asp https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/light... * https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/lightpollution/cutoffclassifications.asp https://www.lrc.rpi.edu/programs/nlpip/lightinganswers/light... There are standards (RP-33-99, RP-2) from folks like: * https://en.wikipedia.org/wiki/Illuminating_Engineering_Society https://en.wikipedia.org/wiki/Illuminating_Engineering_Socie... * https://energycodeace.com/site/custom/public/reference-ace-2019/index.html#!Documents/64mandatoryrequirements.htm https://energycodeace.com/site/custom/public/reference-ace-2... * https://www.shine.lighting/threads/122/ https://www.shine.lighting/threads/122/ * https://www.denvergov.org/files/assets/public/doti/documents/standards/pwes-012.2-street_lighting_design_guidelines.pdf https://www.denvergov.org/files/assets/public/doti/documents... IES TM15 11: * https://www.youtube.com/watch?v=EVPbuq4g5W4 https://www.youtube.com/watch?v=EVPbuq4g5W4 * http://www.escolighting.com/PDFfiles/BUG_rating.pdf http://www.escolighting.com/PDFfiles/BUG_rating.pdf Generally you don't light to illuminate more that 60˚ from the nadir of the lamp: * https://en.wikipedia.org/wiki/Nadir https://en.wikipedia.org/wiki/Nadir

BurningFrog 5y ago

Having grown up with 24 hour daylight from May-August, I would absolutely end nighttime if I could! Permanent daylight really makes life a LOT better.