There are several kinds of inbuilt IC chip set, such as ws2812s, ws2812b, sk6812. now there comes a new one–CS2803.

The biggest difference is that CS2803 with a new technology–breakpoint transmission, this feature ensures that the rest of the LEDs in a strip still work even if one or more pixels develop a bad IC. like the pictures:

CS2803 addressable led strip picture as below:

Ws2812b sk6812 addressable led strip as below: