Greetings *, as stated in the subject, I'm looking for an LED with the 
following constraints:
- package 3528 or smaller
- supply voltage 5V or higher
- built-in PWM controller WS2811 or derivate (1 wire only)

Unfortunately, what seems available on alibaba is just the 5050 package 
and that is too large. Does anyone know of such a part and where to buy 
in larger quantities?

Thanks, Chris