The electric cables (mains and control lines) are in place inside the Light Channel. Four of the 10 tubes are installed. A light switch is wired in beside the internal doorway and we can dim and turn on and off the lights! So far so good!
We have placed the light level meter in the middle of the room and it is reading 122lux at the moment. We will test again tomorrow night when the remaining 6 tubes are installed.