[ExI] Red light for aging eyes

Anton Sherwood bronto at pobox.com
Wed Jul 29 00:13:05 UTC 2020

On 2020-7-28 16:11, Stuart LaForge via extropy-chat wrote:
> A few days ago, I hooked up a 40W 660nm deep red LED light bulb sold
> as a plant grow light in my room and I have been using it as my
> reading lamp for a few minutes every night before bed.

Romana Machado iirc used a secondhand red traffic light for a similar 

*\\*  Anton Sherwood  *\\*  www.bendwavy.org

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