Lindam sensor night light set is ideal for use in your babies nursery and consist of 1 automatic sensor night light and one plug in night light the sensor night light is plug in and turned on and is activated when the lights on the room are turned off the plug in night light is on constantly unless turned off at the plug the set is ideal for use when your baby struggles to sleep at night as it provides enough light to aid natural sleeping patterns and saves electricity when the lights go