This is a question out of mere curiosity. How is stairway lighting in apartment buildings usually done in the US? I once had a guest from NYC and he was totally surprised by our pushbutton system.
In Austria we usually have combined relay-timer system, i.e. during daytime pushing a button will switch on the light for 3 minutes. At dusk it will switch on permanently until a preset time (e.g. 9:30PM), sometimes we'll also install dusk-to-dawn sensors that switch on the light. After 9:30 the light is set back to pushbutton operation. How is this done in the US?
