【Automatic Light Control】 Automatically switches on post light at dusk and off at dawn, no need manual operation. On level: 10-16 lux, Off Level: <65 lux, 30-180S sensor delay prevents accidental triggering of the other lights.,【Easy to Replace & Mount】Exact replacement for your existing post light sensor, male-female connector design, plug and play, change the original sensor in seconds. 1-3/8" diameter mounting hole for easy installation.,【Waterproof】High quality PC material, protects the sensor against from rain, snow, dust and abrasion, withstands years of use. Shock and erosion resistant, suitable for wet locations. Works with -40°C ~ +70°C Ambient Temp.,【Wide Application】 Compatible with most bulbs: up to 1800W Tungsten/ 1800VA Ballast/ 5A E-Ballast. Works with most lamp posts, coach lights and pole lights. Black finish matches any apperance.,【UL Listed】120V AC input voltage, 60Hz, threaded diameter 1-3/8" inch. The photoelectric switchis UL certified