Charlie Stross

Sunset at 6pm, sunrise at 8am: time to get the SAD lamp warmed up again!

In addition to the overhead office Death Ray™ (a 60 watt daylight spectrum corncob of LEDs—that is, it consumes 60W, so emits roughly as much light as 0.5-1.0kW of old style tungsten bulbs).

Oct 16 at 12:12pmWeb
Show threadHelge WilkerOct 16
@cstross Phew - 60 W of LED goodness is… something else.
Show threadtayknightOct 16
@cstross for all your artificial sun needs. https://youtu.be/6bqBsHSwPgw
Building a realistic artificial sun (for dark winter days)

YouTube
Show threadCadbury MooseOct 16
@cstross Yikes! Have you got black wallpaper or do you just wear welding goggles indoors? 500W tungsten equivalent seems just a trifle excessive...
Show threadFazal MajidOct 16

@cstross There is some research that suggests shining a light to the back of the knee helps with SAD, e.g using a torch. Also, shining pure red light into your eyes first thing in the morning helps with retinal macular degeneration:

https://www.ucl.ac.uk/news/2021/nov/morning-exposure-deep-red-light-improves-declining-eyesight

Morning exposure to deep red light improves declining eyesight

Just three minutes of exposure to deep red light once a week, when delivered in the morning, can significantly improve declining eyesight, finds a pioneering new study by UCL researchers.

UCL News