The Wagan Tech 1600 Solar + LED Floodlight uses solar energy to light up driveways, sidewalks, or any outdoor space. This 20in. lamp turns on automatically at dusk to provide 100 lumens of standby light; when motion is detected the output boosts to 1,600 lumens. The light drops back down to 100 lumens after 20 seconds when no motion is detected. The Wagan Tech 1600 Solar + LED floodlight automatically shuts off after 5 hours or when battery is below 30%. The self-sufficient and self-contained design mounts to any hard surface, such as a fence, wall, pole or tree.