E-TRENDS Motion Sensor Lights, Super Bright, Wireless, Portable or Easy to Mount for Indoor and Outdoor Purposes 43w Ultra-Bright LEDs Produce 600 Lumen. Wireless, powered by 4 D-cell alkaline batteries for up to 3,600 activations (lasts 30 seconds per trigger) Covers up to 400 square feet,22.96 feet detection distance, 120 degrees horizontally and 90 degrees vertically detection range. The sensor is designed to respond to the heat and movement signature of the human body, reducing false activations 18 months money back warranty.