Any sparkies on here that can give advice please

Any sparkies on here that can give advice please

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RetroTed

Original Poster:

1,025 posts

210 months

Thursday 25th November 2021
quotequote all
Basically I have a PIR security light outside just a cheap one from b&q and i want to run a second light off it so the both light up when the light picks up motion

I was told that i could use the switch live off the wire under the bulb as its activated by the pir sensor, so i ran a new 4 core wire from the original power switch so i had a spare wire. I then stripped the lamp and found a white wire and a brown. The brown was the same colour that went through a circuit board and to the +live power in the block connector

So I ran the new 4th wire from what i thought was the switch + live from below the bulb to the now + live on the new lamp and connected the earth and ground as normal
Now when i power itflip the switch on inside the house to power them up they both come on which is great but when the original pir lamp goes off the new lamp stays on ?????

Any ideas please
Oh and i am now running led bulbs to reduce the current draw

RetroTed

Original Poster:

1,025 posts

210 months

Friday 26th November 2021
quotequote all
Rockettvr said:
Hi
Looks like you’ve picked up on the permanent live rather than the switched live.
Don’t want to question your competence op but if you’re not 100% sure of what you’re doing maybe get in a qualified sparks?
Electricity is bloody dangerous with the risk of Fire serious injury or even death.
An example of when it goes wrong
https://www.mylondon.news/news/east-london-news/pu...
Please be careful
I hear you mate and appreciate your input

RetroTed

Original Poster:

1,025 posts

210 months

Friday 26th November 2021
quotequote all
Mr Pointy said:
You need a switchED live from the PIR lamp ie a live that is only powered when the PIR lamp is on. Does your lamp have that feature? If not you'll struggle unless you can find a place to connect to insdie the PIR lamp wiring. Investigate with great care.
Yeah it appears that I have picked up the permanent live ( brown wire ) and should of selected the switch live ( white wire )

I will swop them across tomorrow and fingers crossed " let there be light "