Mr. Beams MB530 Wireless Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, White Wireless Motion Sensor LED Path, Step, or Stair Lights. Battery Operated. No Wires-attach Anywhere Built-in light sensor with auto shut-off of 20 or 60 seconds to conserve battery life. One set of batteries allows to have an average of 5000 activations Light coverage of more than 120-square feet/fixture. Perfect LED light for hallways, stairways, steps, bathrooms, bedrooms, closets and more Motion Detection Range Of Up To 12 Feet Away. Optics provide Balanced LED light Power LED provides 35 Lumens of bright white LED Light. Weatherproof and UV resistant housing 3 C Batteries Required, works well and long with Polaroid C Batteries Comes with 1 year warranty