Refer to WS2813 LED have much different from ws2812b ,sk6812,firstly,ws2813 is dual-signal wire version in ws series leds,secondly the ws2813 have one more function:signal continuous transfer when there some break led,which can greatly improve the stability of the digital leds;the third one is tha the capacitance and resistance also package inside the led,this also will be much convenience for the pcb component designer,and reduce some SMT ,and save many space for other element.
The controller system ca be offline/online/remote//wifi/single chip(arduino)/software(madrix,madmapper...)
Show picture of WS2813 LED STRIPS: