Just hooked them up and as expected, they are bog-simple - red channel (for standard WS281X GRB ordering) is warm/3K and green channel is White/6K and blue channel is ignored.
Each “addressable” LED/zone is 8cm long, for a total of 12 addressable zones per meter or 60 addressable zones on a 5m spool. Each of the addressable zones has 24x3K and 24x6K LEDs or 48 LEDs/zone (the 3K and 6K LEDs are discrete and on distinct, adjacent packages, vs that typical 5050 RGB LED package). Another way of looking at each zone is that the effective LED “dot pitch” is about 3.3mm/LED (counting the combo on 1 3K and 1 6K LED as a single “LED”). Which makes for a much more “even” light without a diffuser compared to 60 LED/m and even 120 LED/m strips (though the later is semi-close looking, just not as diffused).
I expect their RGB version of this to be similar in terms of LED pitch and size of each addressable zone.
I can see this for architectural lighting, maybe even tunable counter top lighting, though the 8cm/zone break down is pretty large for anything of smaller scale. I would expect typically, all “zones” would be driven the same, but it’s an interesting mix and definitely nicer to control than a typical linear/PWM CCT strip (less wires, for one).
Gerry