This twin pack of night lights requires no programming, you simply plug it into any 13A mains socket and turn the power on. The built-in dusk to dawn sensor ensures the light will only illuminate in hours of darkness and it will automatically turn off when daylight is detected. The soft illumination offers reassuring comfort and safety in the dark and enables safe passage through your home at night. It is an energy-efficient lighting solution with very low electricity consumption - costing approximately 24p for a whole year’s use.