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. If the sensor detects a 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. Built to last. Suitable for corridors, bathrooms, warehouses, stairs, and similar areas. Specification: Product name: Sound sensor switch Light sensitivity: Dark Product model: MR-SK50A Load power: ≤40W Input voltage: AC180-265V 50/60Hz Sound detection: 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 with: LED downlights, ceiling lamps, panel lights, light bulbs, and other lighting fixtures or electrical appliances. Package includes: 1 × Sound sensor switch