Dorcy Magnetic Motion Sensor Light with Hanging Hook, White (41-1068) LED technology for a small area light anywhere you need it without connecting any wires Motion sensor and photo sensor for activation only when it is dark or when motion is detected Illuminates a 180-degree, 350-square foot area Hanging options include magnets, holes for wall mounting, and hang hook. Only activates when dark and motion is detected. Takes 3 AAA Batteries (not included)