Multi bulb lamps, extra lamps, multiple motion detectors, and a bank of switches. Oh wait, also an emergency break-in box with a flashlight, and extra batteries. That should cover lots of breakage :-)
Do they have a wattage requirement, or can I use 4 watt bulb.
What about permanent step lights? Can I get by with just those?
I didn't see where it said 3-way. Can I use on/off contactors?