electrical light switch

[dl56uk]

I am putting a light inside the passageway between 2 houses. i want to run the power from the indoor downstairs toilet light switch. The switch in the toilet is a single 1 way switch but i want to run the outside light on a seperate switch so i dont have to leave the light in the toilet on nor do i want to put a seperate switch and box on the wall. what type of double switche do i need? ..also could you explain what 1 gang 2 gang mean .. is a gang a switch ?

[ChuckFickens]

I can answer the last part :)

putting more than one socket or switch next to each other is called ganging so as you've figured, a single gang box is for one socket/switch, a double gang for two and so on.

[LCDMAN]

Assuming it's the common installation method,whereby the lighting circuit loops at the fitting (ceiling rose) then you won't have a neutral at the light swtich, just a live and switched live. You need to get your power from the light fitting/ceiling rose.

Have a read here to learn more about lighting circuits; (aimed at the DIYer)

http://www.ultimateha...ght_fitting/index.htm