This dual purpose night light is an excellent choice. Packed with motion sensor detection and dusk till dawn night illumination that can be set by simply sliding the switch to the required mode. Dusk to Dawn _ Choose this setting and the nightlight will automatically turn on when it gets dark and turn off again when it gets light. Motion Sensor _ Choose this setting and the nightlight will turn on when movement is detected in a dark area and off after about 20 seconds. The 4 LED torch sits in its charging cradle and is kept permanently charged. If the power fails, or you take the torch from its charging cradle it switches on automatically. A versatile nightlight that is perfect for any situation.