Here, the battery-powered LED wall lamp offers really.
Among the various fields of application include:
Hallway / corridor, staircases / staircase, toilet, windowless rooms, etc.
Personally, I have installed the wall lamp in an unlit storeroom in the basement.
As I repeatedly gather there daily for my family drinks or food from a shelf or the fridge parked there, me, this light of this twilight enough to not to turn on each time for a few seconds, the fluorescent tube.
The wall lamp is equipped with a motion sensor with far-reaching angle, which turns the LED light when the door opens automatically.
If no more movement in the range of about 4 meters instead, the light switches off automatically after about 30 seconds.
An automatic switch in daylight so far I could not find in contrast to other buyers.
The light color is cold white; a warm tone would personally prefer me.
Cost savings
With the 4 batteries (Mignon cells, not included) are lt. Manufacturer Description up to 7000 applications possible.
Since LEDs have a burn time of up to 50000 hours, the other question is superfluous to the life of the bulb.
Delivery / installation
Included:
Manual, mounting plate and mounting hardware (screws / dowels / double-sided adhesive foam rubber).
The luminaire can be mounted on the screw / bonded mounting plate or placed anywhere in the room.
Conclusion
The price of about 13 euros (cheaper in Set of 3) could be reduced to about 10 euros in my opinion.
