Sunnice&reg; Bright Outdoor LED Light Wireless Solar Powered Security Motion Sensor LED Light, Weatherproof - No Tools Required, Motion Sensor-Detector Activated / For Patio, Deck, Yard, Garden, Home, Driveway, Stairs, Outside Wall / Wireless Exterior Security Lighting (No Battery Required) / Dusk to Dawn Dark Sensing Auto On / Off Charged by free sunlight and light in darkness when people near! Easy to install and easy to maintain. Great useful lighting for your garden, street, aisle etc... No wiring necessary; solar energy powered. Durable, weather-resistant & heatproof plastic construction. Automated switch - Auto on at night / auto off at sunrise; Dim light when no motion / Bright light activates when sensing motion. How Does It Work? It infraed sensors detect subtle temperature changes caused by movement of people within the selected area of protection,it will light on when someone or something enters its 1-2 meters range within a 120 degree sensing angle.When the motion stops, the lights stay on for approx 10 seconds.