I use this motion since now 3 years in the stairwell. I am very satisfied with the device: The (unfortunately not changed by the threshold forth) motion responds very accurately, even to 5-6 meters. The light sensor (which also is not adjustable) is also set very practicable, so that the triggering of the motion occurs only when little residual light and turned off the stairwell lighting. The light output is above-average brightness, without dazzling, and my staircase lit from very neat. The workmanship is good. However: All these points fulfilled the motion only when I connected it to a (not supplied) AC Adapter. That seems to me indispensable. Because with battery, the light output of the sensor was significantly lower, not so precise and above all: Every month new batteries !! Conclusions: thoroughly recommended in network operation and superior to many competitors products, rather mediocre in battery mode.
