IntelliBulb Dusk to Dawn 800 Lumens 2700K LED A19
On at night. Off during the day. Built-in light sensor automatically turns bulb on /off.Turns any outdoor light fixture into a dusk to dawn security light. Built in light sensor turns bulb on at night and off during the day. Conserve energy and save money with the latest LED technology and only use electricity when you need it. For best performance we recommend use in outdoor light fixtures with clear access to direct sunlight to activate the light sensor.