The outlet with motion sensor has the following serious disadvantages: 1. on the consumer an immediate, if not full light in the room. As such, they actually switched permanently and unnecessarily, because rarely pops the sun at full strength through the window. Saving electricity is another way! 2. The period of time for which the current is switched is, with five minutes too long. Again: Saving electricity is different. 3. The part turns in comparison with other products of this kind very loud. I do not recommend buying!