Does the smart sensor light really work on the long night?

Let's think about some scenarios. When I open the door at night, the porch is completely dark. Although there are lights, I can only see the shoes cabinet and slippers when I turn on the switch in the dark.
Then sleep at night, suddenly a burst of urine, have to go to the toilet, hold urine is not good for the body. I think most of us have had the experience of getting up in the dark and kicking the leg of a stool.
At this point, it seems much more convenient to have a smart sensor light in a dark environment that can illuminate the environment without manual switching.
When some people into the induction category, the human body part in the infrared first human sensor in the infrared area, infrared transmitter tube will emit infrared, because the body's blocking reflection reflection to infrared acceptance, if the human body does not leave the induction area, the power switch will continue to access, people leave, when the automatic switch off the load. People come to the light, people leave the light off, very personalized and green environmental protection.

Double head wall lamp with infrared induction function