
This lamp is sort of centrally located in my house. It's not very bright but it serves sufficiently as a nightlight. I never turn it off because the switch is hard to reach and its small compact florescent bulb doesn't use much electricity.
I came home the other evening, flipped off the light in the hall and was startled by total blackness. My brain being slower these days, it took a half second to realize the bulb in my "nightlight" had burned out. Now I know that a small CF light, burning 24 hours a day, can last about four years.