I never heard of this concept until this post, maybe because I live in a sunny country (Brazil) but I can totally see the use case for countries in higher latitudes, as the sun setting at 3pm mist be quite depressing for people.
I wonder if you guys did any research on the effects of having your product in these countries. How much would the impact on well being be?
Yes, there is some really interesting research on this topic. It turns out that if blue light centered around 490nm is an order of magnitude more effective at treating SAD.
