Have bought the motion to not always get up in my room have to have light. Ade ailing knee :) The sensor does have four controls for adjusting (sound, movement, Sleep Timer, Dimmer), but the sensors require revision. Since the detector is installed in the wall, he is extremely sensitive in terms what sounds a too tightly supplied made door on another floor illuminates the room. Too Bad. The motion is strange to least sensitive setting sometimes solves already reaching for a pen from the sensor, sometimes stays with Wave still the light. The dimmer function is schleiherhaft me why I want the dim light? Reasonable All in all for the price!