Hello There, At first I was a bit skeptical, but the thing is amazing! + There is much, much, much more sensitive than PIR -> The head turn at a distance of 3 meters is fully sufficient to trigger the light. + In my copy the fastest start-up is the light goes out even 4 seconds! Very low power consumption, great! + Electricity consumption, I have with 0.5 Watt "standy and 1.0 - 1.5 Watt" on measured "This is also great!
Actually, I can not write anything negative ... except that this part does not weight is well balanced and moderately free hanging lightbulb little tilts to the side ... but that's probably not care :)