Describe:100% Brand New High Quality!The sensor is dormant under light conditions (eg during the day).Controlled by any voice, it can work in dark environments, such as at night.If the sensor senses a sound, the controlled light will come on for about 45 seconds.Fine workmanship and stable performance.Automatic control, saving energy.High sensitivity and strong practicability.Built to last.For corridors, bathrooms, warehouses, stairs, etc.Specification:Product name: Sound sensor switchSensitivity to Light: DarkProduct model: MR-SK50ALoad power: ≤40WInput voltage: AC180-265V 50/60HzInduction sound: 50-70 decibels (within 6 meters)Induction delay: 40 seconds ± 10 secondsPhotosensitive setting: ≤10LuxWaterproof grade: IP22Working temperature: -20～45℃Product size: length 38mm × width 28mm × height 16mmApplication lamps: LED downlights, ceiling lamps, panel lights, light bulbs and other lighting fixtures or electrical appliances.Package includes1*Sound sensor switch