High Quality! The sensor is dormant under light conditions (e.g., during the day). It activates in dark environments, such as at night, when sound is detected. When the sensor detects a sound, the connected light turns on for approximately 45 seconds. Features fine workmanship and stable performance. Offers automatic control for energy savings. High sensitivity and strong practicality. Durable design built to last. Ideal for use in corridors, bathrooms, warehouses, stairs, and similar areas. Product Name: Sound Sensor Switch Light Sensitivity: Activates in darkness Model: MR-SK50A Load Power: ≤40W Input Voltage: AC180-265V 50/60Hz Sound Detection Range: 50-70 decibels (within 6 meters) Delay Time: 40 seconds ± 10 seconds Photosensitive Setting: ≤10Lux Waterproof Rating: IP22 Working Temperature: -20°C to 45°C Product Dimensions: 38mm (L) × 28mm (W) × 16mm (H) Compatible Fixtures: LED downlights, ceiling lamps, panel lights, light bulbs, and other lighting fixtures or electrical appliances. Package Includes: 1 x Sound Sensor Switch