What is the difference between APA107, HD107s, APA102, and SK9822 led strips?
APA102: 20+ kHz PWM, transmission rate 20MHZ
APA107: 9 kHz PWM, transmission rate 30MHZ
HD107s: 26+ kHz PWM (the upgrade of APA107), transmission rate 40MHZ
SK9822: 4.7 kHz PWM, transmission rate 15MHZ
In conclusion, APA107/HD107s is one real product that can replace APA102.
PWM (digital-to-analog conversion) converts digital signals into analog signals and accepts the control of the controller. The faster the PWM transmission speed, the faster the PWM register update speed, the shorter the color delay effect, and almost no flicker.
The data transmission speed is related to the LED lighting time. The faster the data transmission speed, the shorter the time from the first LED to the last LED lighting.