I use this sensor switch into the kitchen for the worktop lighting. Built into the wall cupboard bar he is unobtrusive and yet always and easily accessible. As mentioned in other reviews, you can hear the clicking sound. I feel it does not bother us. The sensor is plugged by small rectangular connector (smaller than the diameter of the sensor) to the switch box. The 220V connection and the switch port are in the form of screw terminals next to each other at the other end of the switch box. The control box itself can tighten or stick (low weight) heat generation was not observed.
