motion activated lights are quite common in bathrooms but not in hallways. these lights are easy to install and cost effective.
steps
- first go and buy as many bulbs as needed
- then install the light bulbs. depending on which kind you buy you may or may not have to deal with wiring
- once the light bulbs are in check to see if they turn on and off
facts about motion lights-
http://www.greeniacs.com/GreeniacsGuides/Energy/Install-a-Motion-Sensing-Light.html