The Super Node can drive two RGBW light fixtures or four AT tuneable white lights. There are two power groups channels 1 to 4 and channels 5 to 8. These power groups have a common positive terminal. The positive is separate between groups. But is it the same within groups. Therefore, you should only use common anode color changing light fixtures.
The color control is managed as a color group of channels. The brightness of the group can be adjusted while the color mixture remains constant. Or the color can be changes while maintaining the same group brightness.
You can also drive one RGBW and two AT tuneable white lights as shown in the following wiring diagram. In this case the first power group CH1-4 is connected to an RGBW fixture. The second power group has an AT color group connected to CH5-6 and a second AT color group connected to CH7-8.