Surry the pictures are upside down, I tried to rotate them in windows 10.

But it can be a bit difficult to see but on the ballast/ powersupply there are a wire from "1-10 V". This wire is black and goes into a connecter. On the other side of the connector the black wire become green. Its the same for the control wire. From the "control" on the ballast it is lillac and it goes into an connector. On the other side of the connector the lillac wire become brown.