Description This item is a light sound sensor switch, made of durable material, can be used for a long term. It adopt the most durable internal sensor and circuit, when pedestrians into the sensing range light will start automatically(light on), when they leave light will delay and shut down automatically. Features - Color:White. - Material: PC. - Size: About8.00X8.00X1.50cm/3.14X3.14X0.59inch. - Working voltage: 36 (V). - Induction range: 3-5m. - Load power: 100W. - Delay closing time: 50S. - Maximum voltage: 250. - Made of selected durable materials, sturdy and will not be easily damaged. - This sound sensor switch is easy to use and won't cost you too much time. - This smart switch can control the switch of the corridor light by sound and light. - It has a wide range of use and can be used in schools, hotels, stair corridors, etc. - After excellent workmanship, this lamp switch has high sensitivity and stable performance. Packing list1 x Sensor Switch