Smart light sensor switch technology turns your post lights on and off each day and saves more energy for your outdoor lighting. Accurately judges natural light, won't be triggered due to occasional light such as car headlights or other temporary light. Features - Color: Black. - Size: 8.20X4.50X3.00cm/3.22X1.77X1.18 inch. - Material: Plastic. - This photocell sensor switch will automatically turn on lights at dusk and off at dawn. - No need for manual operation anymore. The delay feature in the outdoor light sensor prevents the accidental triggering off the light due to headlights of a passing car. - Compatible with LED, CFL, fluorescent, incandescent and other types of bulbs. - You can use this photoelectric switch sensor on most various occasions, such as outdoor lighting, exterior lighting, street lighting, passage lighting, and doorway lighting. - Covered with UL certificate, surge protection available, heavy-duty body, waterproof, AC 100-120V rated voltage, 50/60Hz. Specification - Rated voltage: 100-120V AC. - Rated frequency: 50/60Hz. - Rated loading: 1000W tungsten, 1800VA ballast. - Power consumption: 1.5VA. - Operate level: 10-20Lx on; 30-60Lx off. - Ambient temperature: 40-70. - Related humidity: 95% RH.