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Re:Some cities are taking another look at LED lighting after... by internaut on Sunday September 25, 2016 @01:51PM (#12576376)
> This is off the cuff, but it comes down to circadian rhythms being influenced by the color of light. Before artficial light, the sunrise and sunset have a softer light with a lot more red wavelength in it.

That is right, which is why I have a nice project to use a heliostat with optical fibre to use as daylighting for a house interior.

The colour temperature shall have a nice warm glow in early morning and evening, which shall aid sleep preparation. I'll publish a log if I believe the project is successful.

Set it and forget it is the best smart house technology.

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