1?��Made of good quality plastic, the voice operated switch is solid, durable and eco-friendly. 2?��The light will turn on as sound reach 75-95dB, and will delay 30s and shut down automatically after there is no sound. Convenient and energy saving. 3?��Fit for energy-saving lamp, LED light, LED annular lamp, etc. 4?��Suitable for public places such as garage, corridor, aisle, entrance, bathroom, elevator, etc. 5?��Lightweight and small size. Easy to install and remove. Features: 1. Made of good quality plastic, the voice operated switch is solid, durable and eco-friendly. 2. The light will turn on as sound reach 75-95dB, and will delay 30s and shut down automatically after there is no sound. Convenient and energy saving. 3. Fit for energy-saving lamp, LED light, LED annular lamp, etc.  4. Suitable for public places such as garage, corridor, aisle, entrance, bathroom, elevator, etc. 5. Lightweight and small size. Easy to install and remove. Specification: Material: Plastic Color: White Working Voltage: AC220V 50/60Hz Controllable Load: Energy-saving Lamp?��200W, LED?��100W Induction Angle: Omnidirectional Induced Sound Pressure: 75-95dB (Walking Sound) Inhibited Light: ?Y6LUX Natural Light Delay Time: 30s Temperature: -25??C - +70??C Size: Approx. 6*5* 2.5cm/ 2.36* 1.97* 0.98in Packing List: 1 * Sensor Switch