Originally posted by BattlehammerIt doesn't matter cause I gave a very Cannon example in Greivous.
EU not cannon so that rather irrelevent.
But just to get this very wrong assumption about lightsabers out of the way:
http://www.starwars.com/databank/technology/lightsaber/
There ya go StarWars.com the official site of star wars says that lightsabers are activated with the press of a button, and it even is under the Movie section. 😬