The Xodus BL735D LED motion deck light is a weatherproof, battery-operated, motion sensing light. It is equipped with a Low Glow accent light which runs from dusk to dawn. The light brightens when motion is detected and has 2 brightness levels with 30-second and 5-minute time adjustment options. The pewter housing of the BL735D adds a stylish flair to decks, stairs, and doorways as well as indoor locations. It uses Xodus' patented Low Glow Technology to extend battery life well over a year. It requires three 'C' batteries that are not included.