General description The Motion Sensor Ceiling Lights are battery-powered LED lights designed for both indoor and outdoor use, perfect for illuminating corridors, laundry rooms, closets, and more. Featuring a built-in PIR infrared motion sensor with a 120-degree detection angle, these lights activate immediately when motion is detected within 20 feet (approximately 6 meters). With a brightness of 300 lumens, they effectively cover an area of up to 300 square feet, providing a safe and comfortable lighting solution. Technical specifications Sensitivity: about 5-8 meters Sensor range: about 120 degrees Number of LEDs: 80 LEDs Brightness: 300 lumens LED life: 50,000 hours Size: 19 x 19 x 6.5 cm / 7.5 x 7.5 x 2.6 inches Material: ABS Battery required: 4 D-type batteries (not included) Installation Turn the back plate of the lamp counterclockwise to open it. Easily lift the fixed plug of the back cover and turn the back cover of the lamp clockwise to open it. Use the included hardware to