Nothing worse than trying a switch in the dark. I placed one of the lamps next to the front door. It lights up as soon as one opens. It is powerful enough. I also hope to surprise an intruder! Another in the room keeps me light the lamp at night. The third has found place in the wardrobe, antique furniture that I did not want to spoil it by installing electricity. We always find a use for this type of object. Tip: Use alkaline batteries that have a longer lifespan and do not flow, see rechargeable batteries. In terms of autonomy, depending on the frequency of passage. But as LED lighting consumes little, we should go several months with the batteries.
However, if the battery does not fit you, but that you have a power outlet at the location where you want to install a lamp, you can choose the round model. It does not have a passage sensor but lights up when it's dark. It is even more convenient at the foot of a staircase or in a bathroom when we want to move without turning on the main lamp.
