APA102-2020 RGB have same size as SK6812-EC20, Both of them use EMC frame to package , and APA102-2020 have 2 version, one is 6pin , another 8pin , Both of them is 256grey scale ,it have double signal wire , one is Data ,the other is Clock .
SK6812-EC20 only one version , it is 4pin , 256grey scale ,it only have data signal.
APA102-2020 signal will be stable than SK6812-EC20, as it have clock wire , in addition , APA102-2020 Frequency speed is much faster than SK6812-EC20.
As we know , SK6812-EC20 price is much cheaper ,so SK6812-EC20 is more hot sale than APA102-2020 .
If you want to Learn more , you can visit
APA102-2020 LED:http://www.normandled.com/Product/view/id/832.html
SK6812-EC20 LED:http://www.normandled.com/Product/view/id/839.html
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