InaRock Large Size Solar Energy Powered Outdoor Landscape Lamp Motion Sensor Solar Flood Wall Lights - Weatherproof - Christmas Holiday Party Lights -Nickel Metal Hydride Battery Solar powered,Installs easily in seconds (no battery, wire or cables required),easy to fix on wall 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 Under extreme cold temperatures, or in a cloudy, or rainy, or snowy day, battery may not be fully charged. In such cases, solar lamp may not stay illuminated as given time Bright, yet inconspicuous fixture;8.27 x 6.41 x 1.97 inch