3.Automatic metering: automatically identify the strength of the ambient light, to achieve the lighting requirements set and when someone lights up. Otherwise it 't light. 1.Sensitive sensing, accurate identification of the movement of living organisms and non-living organisms, so that the error rate to a minimum. 2.Strong anti-interference: the use of 5.8GHz operating frequency, affected by the external small, stable and reliable performance. 4.Fully automatic sensing: automatically turns on the lights after sensing people. When people come and go, the lights turn on and the lights turn off. It saves electricity safely and is not affected by external influences such as sound and objects., Weight: 0.04850169764 Pounds, Manufacturer: muqeu