Wall mount (or in-wall or sensor wall switches) sensor switches resemble light switches having a motion sensor that is installed on the wall. Whereas, ceiling mount switches (or ceiling motion sensors) are installed on the ceiling to directly control the light and it is fully automatic with several amazing features. If you want to operate the ceiling sensor manually, then you have to connect an extra wall switch to the light sensor. You can also go with the décor of your room and choose the appropriate type of light switch for your setup and wall type to enjoy the best aesthetic and performance.