> Could they remember if they were off or on? Yes. That is an option. Not a default option because when most people flick a switch ON they expect light. If by

> Could they remember if they were off or on? Yes. That is an option. Not a default option because when most people flick a switch ON they expect light. If by default the light would not come on, they would receive a lot of returns. But you can totally set that if option if that is your preference. > Could they interrogate the switch to see what state they are 'supposed' to be in when power is restored? What type of switch? The dumb one they know is on. If you have a smart switch they could. But if you have a smart switch why would you not wire the bulbs to be always powered? (always as in when the circuit breaker is ON, not literally always :) )