E27 5W PIR Infrared Motion Detection Sensor & Light Sensor LED Energy Saving Warm White Light Bulb Features PIR motion detect sensor and light sensor activated, detects movement but will only light up when it is dark. When activated by motion, it will automatically turn on and last for 30 seconds and the detecting range is 4 - 6 meters. Suitable for most indoor use like home maintenance and outdoor activities like hunting, cycling, climbing, camping, etc. PIR sensor is built-in the bulb, no installer needed. Suitable for home security lighting, household corridor, balcony, toilet, underground parking lot, office & shop, etc.