I'm looking for some guidance regarding the extension of the circuit
that feeds the couple of outdoor wall lamps I have on the back of my
kitchen/extension to light the patio.
In a nutshell, I want to have four lights outside instead of the
existing two. However, I (or in fact my wife!!) not only would like
the new pair of lamps to be switched on with the original ones from
the existing switch in the kitchen, but also would like to be able to
independantly switch them off outside to leave just the original two
Initially, I thought the wiring would be straight forward afair to
take a feed from each of the existing lamps (via a switch) to the new
wall lamps, but having though about it and tried to sketch out the
circuit, I'm not so sure...
Can anyone help me with the best way to go about this...
Thanks a lot
I would do is...
Turn of mains!
Take a cable from one of the original lights to an outdoor switch, then from
this switch take a cable to the first of the new lights, then to the other
The switch will need to switch the live (red wire) just connect the two
neutral wires together with some chock block in the back of the switch
Alternatively, run a single cable from one of the original lights, through
the switch to the new lights, then carefully break into the wire, and only
cut the live, strip back, and connect to the switch - this may not be
If the switch is a double pole, then you can switch both the live and the
Thanks for this... much appreciated...
If I read it right then, the feed arriving at the existing light
should be Live, Neutral and Earth ???
I think what confused me was that I thought that it was Red (Live from
switch), Black (Live return to switch) and Earth...
Trust me to over-complicate things!!!
This is correct!
You have Live, Neutral and earth at your consumer unit (CU), this then runs
to a switch, where (at least) the live goes through a switch, then it ends
up at the light's L N E terminals.
The actual runs of wire may be slightly more complicated looking, for
example, the feed from the CU may run directly to the light, then another
wire runs from the light to the switch, more cable is involved this way, but
the actual connections are the same.
If this is the case, just make sure you connect your new cable to the wires
that are connected directly to the original light!
Also, if this is the case, you can then easily add a photocell, or darkness
Then when you forget to turn the lights off, they will at least go off when
it is light!
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