shibumi 1 Report post Posted January 30, 2015 Hi fellows. May I know how many kinds of 2-way switch implementation are there? It seems like there is a kind of 2-way switching that does not require the (light) switch itself to be a "2-way" while there is another kind that requires the physical switch to be 2-way. My own impression is that 2-way switches simply means the same single appliance, e.g. one lamp, to be able to be powered on/off from 2 physical switches. What's the other kind? Share this post Link to post Share on other sites
Pelect 3 Report post Posted February 2, 2015 The other kind is an electronic switch. Suppose you have 2 lights; it toggles between off, one light on and both lights on.It is not actually a 2 way switch, though it can act like one.More common is 1 or multiple lights controlled by 2 or more physical switches.You are better off with the physical type; i.e. two physical 2 way switches. You can have 3 or more if you want. Very reliable.There are two different ways of wiring physical 2 way switches but the net effect is the same.Two way switches are such a convenience especially if you don't have to get out of bed and fumble in the dark to on/off the room or toilet light. Share this post Link to post Share on other sites