In summary, HD107S offers a better performance on both PWM frequency, transmission speed and brightness, these are key differences that make HD107S more popular for different applications. The APA102 is an established, reliable product that offers high-speed data transmission at cheaper price point. The HD107S, on the other hand, has a higher refresh rate, a higher transmission speed, and better color consistency and higher brightness, making it ideal for high-speed applications that require precise timing and color matching.

Here is a video to show you how to control the HD108/APA102 16bit led by Matrix with H807SA Artnet Controller

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