The UI is simple. Push down the encoder and turn to select the parameter you want to adjust. Turn encoder without pushing to adjust the parameter. Hue is adjustable from 0 to 359 and rolls over.
This is the UI with four channels of LED drive mounted in the box. The drivers will source 0.67A per channel. This amounts to around 12W per channel. The current mixing algorithm limits the total panel power to under 20W.
The attached panel is populated with discrete Cree XQA RGBW LEDs. The panel may support over 50W of white power if needed. The white on the panel shown is a 2700K Cree XQE with a CRI of 85. Modeling shows that with a 2700K 95 CRI white CRI of over 90 can be maintained up to 3200K and CRI over 85 up to 3800K. The panel will support the addition of another CCT white to increase the white tuning range at high CRI. White power of the panel can be increased to over 50W if needed.