This is driving me nuts, whats the purpose of the 5 wire system i have come
>across when trying to replace an outdoor lantern, security light? I have
>been presented with 2 red wires, 2 black wires and an earth.
>
>Now in hindsight i should have looked inside the other light when i took it
>off but it was in such a poor rusty condition etc, it was hard enough
>getting the damn thing off the wall and in the end it was clip the wires at
>the back job. Now i assumed it was a red + red, black + black and an earth
>but everyone told me this is wrong, and even some black wires could be
>classed as live!!
>
>I have tried every combinations possible, the two reds joined together in a
>sep choc bloc and 1 black for live and one black for neutral even, it does
>not matter what i do i either get nothing or trip the light circuit for the >house. >
>I have attached the instructions, hopefully someone knows my plight as this
>is getting so frustrating and embarassing
>
>Thank You for reading this
>
>Bryan
>
Well... I'll have a go. :-)
According to the diagram there should only be one supply cable coming from inside the house. This is connected to the screws marked L.N.E.
The L then goes out on L feed to the PIR, returning - when conditions demand the light to be on i.e. darkeness, on what would normally be the neutral wire but in thsi case is classed as a switched L.
This is taken via the top connector block out on the L wire to the lamp, whose N return is connected to the main incoming neutral.
Which should work, providing the PIR is set up correctly and the buld is OK.
HTH Andy