ARTnet support for the H801 controller.
The H801 led controller is a very cheap (<10 USD) device available from the usual chinese retail places like aliexpress.. Inside you will find an ESP8266 MCU and a pinheader for programming. Open it up, connect a TTL adapter and fire up the Arduino..
Check out this guys website for instructions on hw to program your controller: https://eryk.io/2015/10/esp8266-based-wifi-rgb-controller-h801/
Documentation: https://metalab.at/wiki/Metalights