9.5W, A19 Intelli Bulb Dusk To Dawn LED Light Bulb, E26 Base, 800 Lumens, 5,000 Kelvin Color Temperature, 15,000 Hours Rated Life, On At Night, Off During The Day, Built In Light Sensor, Automatically Turns Bulb On/Off, Turns Any Outdoor Light Fixture Into Dusk To Dawn Security Light, For Best Performance We Recommend Use In Outdoor Light Fixtures With Clear Access To Direct Sunlight To Activate The Light Sensor, CEC CA Compliant.