Elrigs LED Motion Sensor Bulb with Dusk to Dawn, 5W (40W Equivalent), E26 Base, Warm White (3000K), 24 Feet Induction Distance EASY INSTALLATION AND MORE APPLICATION - Installation just like normal E26 bulb, ideal for corridors, halls, landings, stairwells, outdoor porch light fixture, after you screw the bulb into socket, it will keep lighting for 40-60s(* If there is any object moves, the bulb will always keep lighting until there is no more motion in the induction range *) INTELLIGENT RADAR SENSOR - Automatic on when object(include pet) moves in detection range, black out in 30 seconds after there is no movement ONLY TURNS ON IN DARK - Built in light sensor, only turns on when the ambient light is dark and it detects motion, avoid unnecessary work in day or when the ambient light is bright LARGE INDUCTION RANGE - The built in radar sensor is much more sensitive than normal PIR sensor, it detects motion up to 24 ft induction distance with 160 detection angle, also detects through glass, wood and stud walls, meanwhile it also detects pets, therefor it turns on when pets walk in the induction area UNLIMITED WARRANTY - Elrigs offer 2 years unlimited warranty. Just contact us for any question or replacement