Working Principle: Sound Sensor / Voice Induction Lamp: The lamp will continuously light up for about 1 minute after being connected to power, and then automatically turn off. Please wait about 15 seconds for the sensing mode to start. Feature: Automatic PIR motion detection or sound sensor for turning on/off the light Durable and energy-saving High sensitivity, high light, and low consumption Suitable for corridor, pathway, stair, garden, yard, etc. Specification: Light Color: White Connector Type: E27 Detection Range: 5M Detection Angle: About 120 Power: 3W/5W/7W/9W/12W (Sound Sensor) Voltage: AC200V-240V Operating Instruction: 1. The lamp can be installed near the stair, it's better to let the lamp head turn to the exit/entrance 2. The lamp should be kept far away from heater, air conditioning, fridge, stove, such places where the temperature is high and sensitive (objects over absolute zero degree will probably make the lamp light up) 3. Do not put any shield, furniture, or large objects around the lamp 4. Do not turn it to the window to avoid disturbance of hot air/white light and body motion to falsely light up the lamp 5. Do not install the lamp near the gate or airway Troubleshooting: 1. When installing it, it lights up and turns off automatically, sometimes it may light up automatically, the reason may be that there are animals moving or the lamp is facing a hot place, or the installation angle is not correct 2. If it lights up automatically every 8 seconds and turns off every 30 seconds and repeats this, you should now check if there are people or animals moving around it, or take the lamp to another room for checking.