... diameter of famous infrared sensorsInduction control:The built-in light sensor, the temperature compensation deviceInduction sensitive distance:>3mInduction sensitive ... batteryDelay time: 20, 60, 90, normally on (as emergency light)Induction interval time: 5-7secondTime for Power on self ... rain, heavy humidity, and low temp, very changeable light.Sensor light should not be set beside the window, or ...