Thanks for the heads up, I was not aware of Kessil at all. Tbh I was very sceptical about these Chinese "high power" LEDs, but it turns out they're not a bad solution at all - as you've said "Leave it to the Chinese to be practical".
What you've got there, is a cheap version of the Kessil, and likely if you put the two side by side color would be very similiar along with PAR.
I like how they added the phosphor coating in a single strip over the array. Leave it to the Chinese to be practical :-)
I really wish they'd use a much warmer phosphor though. The benefit of doing it this way is perfectly smooth color blending.
There is also a lot of variety and with the prices being so low it allows for a lot of experimentation.