Automatic Lamp Sensors- Set of 2 Never come home to a dark house! Instantly turns any lamp into a home security system, protecting your home and family. Easy to use electric eye sensor simply screws into any light socket. Bulbs then screw into the sensor. Adjustable sensor will automatically turn your light on at dusk and off at daylight. Turns lamp/light ON at dusk. Turns lamp/light OFF at Dawn. Fits any standard lamp socket. (For use with 60W - 150W light bulbs.)