The Uni-Com Night Light requires no programming, you simply plug it into any 13A mains socket and turn the power on. Its plug-through design also leaves the socket free for other appliances. 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 3 long-life LEDs provide soft white illumination for reassuring comfort and safety and is perfect for bedrooms, hallways and use all around the home. Specification: Dimensions: 112 x 56 x 41mm