After I removed the motion of Aldi fuller frustration again, now a sensible motion was needed. I've found here! Well, I think that one first installs the wall outlet for an "unprocessed" and then sets the complete switching unit on the can. For this purpose, a deep-seated in the socket connector is provided. For me it has made a very professional impression. Should also be mentioned that there is a small slide switch sits on the motion, which can be used to AUTO, ON or OFF. Very beneficial! All other settings (switching time, sensitivity and twilight sensitivity) can be operated from the bottom of the switch. From me there is a recommendation to buy!