We get $3.5. In Europe many hotels have motion detectors in the hallway that turn on the lights only when someone enters the hallway and elevators that start running only when someone approaches them rather than all the time. Refit […]
We get $3.5. In Europe many hotels have motion detectors in the hallway that turn on the lights only when someone enters the hallway and elevators that start running only when someone approaches them rather than all the time. Refit […]