Lights our stairway top (even during the day)

The device does exactly what it should do: it lights up at night, the staircase, if we want to our daughter. The sensitivity is just right for us, on staircases, or disposal of the motion sensor reacts and pleasant lights on, not hidden.
The only previously identified downside: the sensor also reacts when it is light, and the staircase light is already shining. So we put the unit during the day!