From: Clint Jay <cjaysharp@gmail.com>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Wed, 2 Sep 2020 14:44:54 -0700
Subject: Re: [OT] Red monochromatic LED flashlights and/or light bulbs
Thread-Topic: [OT] Red monochromatic LED flashlights and/or light bulbs
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Reducing the amount of blue and shorter wavelength light is meant to help,
beware 'monochrome' LEDs that use phosphors to produce 'odd' shades of
light.

On Wed, 2 Sep 2020 at 22:23, Jason White <whitewaterssoftwareinfo@gmail.com=
>
wrote:

> Hi everyone,
>
> I'm interested in identifying the best way to solve a day to day
> problem I have. I like to read at night before sleeping, but I find
> certain types of lighting interferes with the normal onset of
> "sleepiness."
>
> I suspect that using (nearly) "monochromatic" red lighting vis LEDs
> would be one way to address this. I was wondering if anyone could
> recommend some "ready to use" easy to buy and test lighting devices
> that are effectively "monochromatic".
>
> I think it boils down to three possible items:
> * LED strips
> * LED light bulbs
> * LED flashlights
>
> I can find LED strips on ebay. maybe even ready to use ones with power
> supply attached. But the other two seem harder to find. Few items are
> labeled monochromatic even if they effectively are.
>
> --
> Jason White
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
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>


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Clint. M0UAW IO83

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