SODIAL(R)E27 8W 720LM 16 SMD 5730 LED Bulb Auto PIR Infrared Motion Sensor Sensory Sensor Lights Detection Lamp White Light AC 90-230V Using advanced PIR sensing technology automatically identifies human body: light is on when detects people, and switches off after 120 seconds when people leave. High bright, high sensitivity, low power consumption, long operating life, energy saving. Work in the dark or low-light environment. No wiring, easy installation. Elegant appearance, high quality aluminum alloy cover. Great for corridor, balcony, bathroom, staircase, etc. Note:Installation height should be less than 4.5m. Do not install in wet place and a very bright area. When install the product during the day, it may not light on because the environment too bright; Detection method: after installation, can use cloth or other ways to cover for a while, so it can light on.