Working principle: Sound sensor / Voice induction lamp: The lamp will light continuously for about 1 minute after connecting to power, then it will automatically turn off. Wait about 15 seconds for the sensor to activate. Function: Automatic PIR motion detection or sound sensor to turn the lamp on/off. Durable and energy-saving. High sensitivity, bright light, and low consumption. Suitable for corridor, walkway, stairs, garden, fence, etc. Specification: Light color: White. Connection type: E27. Detection range: 5M. Detection angle: Approximately 120. Power: 3W/5W/7W/9W/12W (Sound sensor). Voltage: AC200V-240V. Instructions for use: 1. The lamp can be installed near stairs, it is better to point the lamp head towards the exit/entrance. 2. The lamp should be kept away from heaters, air conditioners, refrigerators, stoves, places with high temperature and sensitivity (objects above absolute zero can cause the lamp to turn on). 3. Do not place any covers, furniture, or large objects around the lamp. 4. Do not point it towards the window to avoid hot air/white light interference, and movement falsely turning on the lamp. 5. Do not install the lamp near a gate or airway. Troubleshooting: 1. When installed, it turns on and off automatically, sometimes it can turn on automatically, the reason may be that an animal is moving or the lamp is pointed at a hot place, or the installation angle is not correct. 2. If it turns on automatically every 8 seconds and turns off every 30 seconds and repeats this, you should check if there is a person or an animal moving around it, or take the lamp to another room to check.