Surprisingly well designed UVC product (Patreon)
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Although the pandemic created masses of very shady products to "sterilise" everything, it did at least create a huge market for UVC LEDs, and in doing so helped with the development of that technology.
This is one of those products, and is now being dumped on eBay in bulk to move the excess stocks manufactured during the pandemic.
This one is very different from many of the similar products in that it has made a serious effort to be a real thing. I'm not convinced that anyone actually needs to sterilise their phone or that this is actually an effective way of doing it, but it does seem well designed with surprisingly good circuitry.