Motion Sensor LED Bulb Light PIR Infrared Detection forpow 4w with Adjustale Tube & US Plug,Auto Switch Energy Saving Stairs Night Lamp,Warm White for Bedroom, Toilet,Doorway Auto on/off: Intelligent Infrared night light:automatically turn on if the infrared detector detects motion such as when someone walks into its area of detection Widely and good sensitivity:motion sensing range is within 5 meters and 120 degrees from center of PIR sensor, up to 400 lumens 30s long lasting lighting time:The light will not come on until it is dark and it senses motion. It then stays on for about 30 seconds after the motion stops US Plug in wall,Easy to install Just plug it in and it lights up immediately. Warm white lighting suitale for corridor,doorway,balcony,toilet,bedroom,stairs,and also office.