Nite Guard Solar Predator Control Light, 4-Pack A constant flash of light to all animals that hunt or feed at night that they have been "discovered" or are being watched No switches; its all automatic just remove the black protective tape that covers the solar panel Solar powered and light sensitive turning on at dusk and turning off at full daylight Protects Gardens, Poultry, Livestock, Campsites, Property and much more Weatherproof