RT W34V3 | R770 B34V3 HALCYON installation Directions 1. Switch off mains power supply 2. Connect Dilemma Driver to mains voltage cable {L, N) Do not connect downright to driver if driver is live. Inrush current from live driver will cause instant downright failure. Do not switch secondary side. 3. Carefully install downright into per-cut 872mm hole. 4. Tum on mains power and switch on lighting circuit.