Quantum X 100/QuantumX 240 Installation Instructions There are 2 dimming modes of the driver, each of them suitable for different application, and can not be used at the same time. STN 1. Dimming knob, adjust the light luminescence coordinating to diffraction goer. Connect the 7 “4” power cord here. N R}12 network port can connect to two kinds. of dimming controller :0-16V, PWH. Note: If using RJ12 Interface, set dimming knob to Ext. This luminary can be indoor use.