OK, those things certainly seem to create my experience of redness. I don't dispute that they do. How would we confirm that my experience of redness is the same or different to yours? Maybe two quite different ways of producing redness actually produce the same qualia, while a similar looking way produces blarfness? How would we determine that?
As I said this would seem to be very unlikely since we all have very similar hardware that we know reacts in pretty much the same way to the same stimulus.
For example: https://www.newscientist.com/articl...ns-thoughts-into-words-using-a-brain-implant/