Work Principle: Sound Sensor / Voice Induction Lamp: The lamp will light up continuously for approximately 1 minute after being powered, then turn off automatically. Please wait around 15 seconds for the sensing mode to activate. Feature: - Auto PIR motion detection or sound sensor for light on/off - Durable and energy-saving - High sensitivity, high brightness, and low power consumption - Suitable for corridor, pathway, stair, garden, yard, etc. Specification: - Light Color: White - Connector type: E27 - Detection range: 5M - Detection angle: Approximately 120 degrees - Power: 3W/5W/7W/9W/12W (Sound Sensor) - Voltage: AC200V–240V Operation Instruction: 1. Install the bulb near stairs, with the bulb head facing the exit/entrance. 2. Keep the bulb away from heaters, air conditioners, refrigerators, stoves, or any locations with high temperature or strong heat sources (objects above absolute zero may trigger the sensor). 3. Do not place shields, furniture, or large objects near the bulb. 4. Avoid pointing the bulb toward windows to prevent interference from external heat or light, which may cause false activation. 5. Do not install the bulb near gates or airways. Trouble Removal: 1. After installation, the bulb may turn on and off automatically. This could be due to movement from animals, placement in a warm area, or incorrect installation angle. 2. If the bulb turns on every 8 seconds and off every 30 seconds repeatedly, check for nearby movement from people or animals. Alternatively, test the bulb in another room to confirm functionality.