Outside socket off lighting

[Notebook64]

Hi
I have a switch by my front door inside the house that switches on and off an outside light.
the front of the house has a lower roof that goes up and after windows joins the top roof.
therefore, I have an eves? That is about a foot above the top of the front door.
looking to place some Xmas lights outside.
I was thinking of using the supply to the outside light and add to it to place a socket or junction box and with a dusk dawn sensor power some lights. This would be under the eves. Therefore possibly fit a socket as the lights I expect will be 220 transformed to 5v etc

whats the safest options
thanks
nick

 

[SJD]

Firstly it is not clear if you were thinking of connecting to the outside light, or to the switch? If the switch, bear in mind this may only have a L and switched L, and no N present, and so may not be suitable.

It is not normally a good idea to put a socket on a lighting circuit, since sooner or later someone will plug in something that takes a higher current that trips the circuit. And I'm guessing you'd leave the socket in place for future years. Also, many of the outdoor sockets won't have room for a large transformer and allow the lid to close. If exposed at all to the elements, then a standard socket is not suitable. Plus RCD protection is mandatory for the socket.

If there is any way to use an existing socket e.g. in a garage, and just run the 5v or 12v cable outside, that would (a) be simpler, and (b) safer.

 

[Notebook64]

A little more information.
1- connect to outside light
2- the transformer is a plug type like a mobile phone charger