This light sensor will automatically turn on light at dusk and off at dawn. This light sensor can be used on most various occasions, such as yard lighting, corridor lighting, street lighting, passage lighting, doorway lighting and much more. Features - Color: Black. - Material: PC shell. - Size: 8.50X4.50X3.00cm/3.34X1.77X1.18in - 120~277V , 50/60Hz, designed on the basis of an electrical heating structure that provides time delay to avoid redundant switching against the spotlight during the nighttime. - Great for controlling outdoor lighting on the street, passage, doorway, walkways, etc. - Light sensor , no need to operate manually. And simple to install. - This is a must-have safety item for vacation homes and vacant rental properties. - Fine workmanship and creative appearance ensure its popularity and practicality. Specification - Rated Voltage: 120~277Vac. - Rated Frequency: 50/60Hz. - Rated Loading: 500W Tungsten, 850VA Ballast, 5A E-Ballast. - Power consumption: 2W. - Operate Level: 10~20Lx On; 30~80Lx Off. - Ambient Temperature: 40 degree centigrade~ +70 degree centigrade. - Related Humidity: 95%RH. Package list: 2 sensor