Recently ,There are many new bulid in LED come out , One is SK6812. About SK6812, There are many intereting Design , One is SK6812 RGB , ONE IS SK6812WWA,Another is SK6812RGBW. 

               About SK6812 RGB, it is as same as our APA104, AND ws2812b, they can use same PCB , same controller , They are  compatible . sk6812 rgb LED datasheet is  on the following 

http://www.szledcolor.com/download/SK6812%20LED.pdf

              About the SK6812WWA, it is really a new design , a new technology , it is also use 5050 led , which Have 3 chip inside ,which 3 chip is not RGB, it is WWA, what is the mean of WWA, it is Warm white ,Pure white ,Amber . each color One Channel , they can mix different white color 

        SK6812WWA LED CHIP datasheet is on the following 

http://www.szledcolor.com//download/SK6812WWA%20LED.pdf

               Another is SK6812RGBW , it is a new design too , it is 5050 led , but it have 4 chip inside , it is r,g,b,w, about w , it can be warm white (3000k),nature white(4000k), Pure white (6500k ). so you can image ,you can mix many different color ,you also can have white color , all of them is individual , not only for decorating , but also for lighting 

             SK6812RGBW LED CHIP Datasheet is on the following 

http://www.szledcolor.com/download/SK6812RGBW.pdf

                Now we have use those led chip to make many different types led strip , i think sk6812 will be more and more popular .