The 3D LED Wireless Motion Sensor Flood-Lite uses new LED technology to provide safe bright light anywhere you need it without connecting any wires. It uses 3 D cell Alkaline batteries (not included) and will run for more than 1 year without changing batteries (based on average use). The Wireless LED Flood-Lite uses a sophisticated motion sensor coupled with a photo sensor and variable timer and brightness control. The Flood-Lite will only turn on when it is dark and only when motion is detected. The light automatically turns itself off after 30 seconds or 2 minutes. The LED Flood-Lite features 2 brightness levels to allow for extended, ensure long life, and energy efficiency. The LED Flood-Lite comes complete with a 4 way swivel mounting bracket and hardware for easy installation. The 3D Wireless Motion Sensor LED Flood-Lite is a perfect light for any garage, patio, yard building, barn, or walkway.