Hi,firebat,
Maybe you can try using DC12V GS8208 LED smart string. The 12V of GS8208 mainly solves the problem of the length of the lamp band connection, so we use RGB in series to reduce the driving current and improve the voltage attenuation tolerance.
Hello, everyone. I am Success come from China. Our company is Genesis Systech. We are a professional supplier of integrated circuit solutions. We have developed classical chip products independently: GS8208, GS8206.It's a privilege to have technical exchanges with you.