2 Pack LED A19 light bulbs with Motion Detection Sensor Motion PIR Infrared Sensor light bulb 9W 5000K Built-in Infrared Sensor:Using the infrared spectra produced by the body,induct the heating element(people or animals). Corridor,porch recommend using human body infrared sensor.Easily solved the problem of coming home to a dark porch Built-in Brightness Sensor:The bulb will only light at night,Automatically turn on the light when people get closed at night and automatically turn off after 60 second. Humanized design:If people or animals in the range of induction, the bulb will continue to light, will not turn off and it will shuts off after you leave the range in about 60 second. Easy Install:2 Pack Standard A19 shape with E26 sokcet,9 Watt 720lm,5000K,Sensing distance: 10-16ft ,Sensing Angle:120 Warranty:If the product have any issues within 2 years,please email to us directly.We will replace or refund it.