I don't know about zwave but this is not possible with X10. If you have the app that remembers the last light state set, it will turn on to 10% if that's where it was last time. If you have the app that turns on a module to 100% every time, it will not remember the 10% state which may be what you want. I don't know how this will function when turning on a light. It may turn on to 10% and then continue up to 100%. It might also turn on to 100%, down to 10%, then back up to 100% (depending on what apps you have enabled...unlikely this will happen).