A simple wiring aid to help reduce the cost of installing a lighting system. The DUC10 controls up to 10 luminaires. The unit is a 3 channel device, channel A has 4 luminaire outputs, channel B has 2 luminaire outputs and channel C has 4 luminaire outputs. There are corresponding DALI inputs on each channel for presence detectors (RJ45) and SELV switch inputs via pluggable connectors. Additional pluggable connections allow the testing of emergency fittings and connections for corridor hold. The DUC10 can be configured to work in various combinations.