LED downlights cable

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I am planning on fitting some LED downlights.

I have looked at some off the shelf kits which come with the transformer and a ready made wiring 'loom' with quick fit connectors on the end. My issue is that the cable lengths between the LED lamps are set and not applicable for what I want to do. Therefore I plan to buy the transformer and lamps seperate and make up my own 12v lighting.

What cable is suitable? Longest run from the transformer would be 3m. I realise that if you go too long that you can get issues with the electronic transformers, but I think 3m will be ok?

Are there any quick fit connectors that I can buy to make fitting of the lamps to the wiring nice and easy - like with the ones you buy already made up. I was thinking Wago connectors, but I am expecting that something like a 0.75mm flex will be the right cable - will Wagos accept a flex like this? I know they will on the lamp side of the connector, but would they on the loop in-loop out side where you normally push in the solid conductor?
 
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Just realised that the wago lever connectors are rated down to very fine stranded cable (0.08mm2 - which must be speaker cable or similar) so these should do the job.

Anyone use anything different?
 
You want to keep the lead as short as possible between the transformer and the lamp. Normally a maximum of 300mm. This is to limit volts drop and also the effects of RFI.
 
You want to keep the lead as short as possible between the transformer and the lamp. Normally a maximum of 300mm. This is to limit volts drop and also the effects of RFI.

They are LED downlights, so VD should not be too much of a problem. I would expect 3m would be OK, but depends on the wattage of the devices.
 
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Thanks for the help.

As it happenes Ive decided to ditch the low voltage and go for 240 volt LED's instead.

I'd got it into my mind that 12v LED's would use less power, but I think I was being a bit simple :oops: In fact I guess the 12v's will be worse due to transformer losses.

I dont actually need the 12v, as its not a bathroom etc. So If I move to 240v then theres no transformers needed and the wiring will be future proofed in case I ever want to replace with standard light fittings. Sorted.
 

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