2-way light switch-how

[bigfoot]

I need some sparky to advise me;I am considering fitting additional lights in the rear,bedroom area of my Hymer Exsis,at present the area is dark and you have to be in the area to switch on the overbed lights. I need to fit a two way switching arrangement so that I can switch on the lights when in th kitchen area and then switch them off when in bed,my problem is how do I do it.
I need to source the switches,if they exist,and the diagram.

 

[acting_strange]

http://www.ultimatehandyman.co.uk/diy/electrics/light_fitting/two_way.jpg

 

[acting_strange]

 

[acting_strange]

BTW...at the risk of getting shot by John...the common live is normally marked at both ends with some black or blue insulating tape so you dont forget...

 

[Reallyretired]

You would probably have to use 240v switches as all the caravan 12v switches I have seen are only single throw.

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[Bailey58]

I remember years ago on a conversion job we did on an old house and I wanted 2-way everywhere where there was only single switches. All I ever heard my electrician say from up his ladder was " We gonna have job, I haven't got a neutral up here, they've only put in a live and switch wire"