I have a game room type area that has it's own bathroom. Above the door to the bathroom I would like to place one of those "Walk/Don't Walk" street signs. I would like the "Don't Walk" to be wired so that it comes on with the light in the bathroom. I would like the "Walk" to come on when the light in the bathroom goes off. I was thinking a two way switch could do this ... but now I'm thinking that it wouldn't work. Do you know which kind of switch I would need?
A 2 ways switch should totally do it:
Just ensure that:
You may want to add a second switch somewhere so the walk sign won't stay on 24/7 while the gaming room is empty (perhaps wiring everything to the main light switch off the gaming room?)
EDIT: I should add that, since it implies live electric current, YOU SHOULD HAVE A FULLY QUALIFIED PROFESSIONAL CHECKING YOUR DESIGN BEFORE YOU DO ANYTHING, and CHECKING WHAT YOU'VE DONE BEFORE ANY CONNECTION TO YOUR POWER GRID! (depending where you live, this may be mandatory by law; if it's not, you should still do it)
Or in other words, you do as you want, but I'm not responsible if anything goes wrong after you followed instruction from "some guy on the internet".