Oh very interesting. I wonder if cameras can sense this and generate a response curve for a given light?
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Film it with the iPhone slow-mo camera. If it causes strobing then that's what the banding is. LED PWM - causes me massive headaches, hope it's all good for you though.
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Will test tomorrow; thank you! No headaches yet.
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What light is this and where can I get one?!
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Based on experience with my wife’s SAD, I recommend upgrading to a strand of 25 sockets you fill with 16w (100w-equiv) LED bulbs, if your current setup isn’t enough. Or 21w/2500lm bulbs, if cost efficiency matters less than time/space. 3000K color is nicely warm. (Not a joke.)
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Ah, very interesting, thank you! It’s good to learn that 3000K is working well for your wife. The studies I’d seen had suggested cool light was necessary, eg https://www.ncbi.nlm.nih.gov/pubmed/16165105/ …
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Does the lamp help? The banding probably comes from the LEDs blinking really fast and the pixels in the camera expose row-per-row and the dots/grids are secondary (very dim) reflections of the indivudual LEDs inside the probably 8 piece lens system in your phone camera.
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I don’t know yet! Major studies assessed benefits after a couple weeks. http://www.lightboxco.com/Articles_files/Light%20Therapy%20for%20Seasonal%20and%20Non-Seasonal%20Depression.pdf …
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) to combat winter gloom. I turned it on the first time without thinking about where I was looking and it was like opening the Ark of the Covenant. Also fun: it produces hilarious artifacts on the iPhone camera—weird grids, banding, etc