High Quality! The sensor is dormant under light conditions (e.g., during the day). Controlled by sound, it can work in dark environments, such as at night. When the sensor detects sound, the connected light will turn on for approximately 45 seconds. Fine workmanship and stable performance. Automatic control, energy saving. High sensitivity and strong practicality. Durable design, built to last. Ideal for use in corridors, bathrooms, warehouses, stairways, and similar areas. Specifications: Product Name: Sound Sensor Switch Light Sensitivity: Activates in darkness Model Number: MR-SK50A Load Power: 40W Input Voltage: AC 180265V, 50/60Hz Sound Detection Range: 5070 decibels (within 6 meters) Delay Time: 40 seconds 10 seconds Photosensitive Threshold: 10Lux Waterproof Rating: IP22 Operating Temperature: -20C to 45C Product Dimensions: 38mm (L) 28mm (W) 16mm (H) Compatible Lamps: LED downlights, ceiling lamps, panel lights, light bulbs, and other standard lighting fixtures or electrical appliances. Package Includes: 1 Sound Sensor Switch