They are packaged as SK9822 but do not work with that protocol. After lots of testing I've come to the conclusion that they are buggy, but I've tried them with the APA102 code and they work. So they are actually APA102, but for some reason they are labeled and sold as SK9822. This is very strange as 102 is usually a bit more expensive. Inconvenient because they don't work with an existing installation, but work independently.
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