Ikea 602.637.29 Molgan Battery Operated Light, White, 1-Pack The light turns on and off automatically as it is activated by a motion sensor Easy to place anywhere as it is battery operated and does not need to be connected to the main supply You can stick the light to the wall or ceiling using the double-sided tape Requires 3 pcs HR03/LR03 AAA 1.5V batteries, sold separetely Diameter: 3"