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Run 12v Garden Lights off 24v Transformer?

Discussion in 'Electrics UK' started by adzyp, 14 Oct 2017.

  1. adzyp

    adzyp

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    I had another thread about my garden lights not working and since found that the transformer had gone.

    Now i do have a brand new 24v transformer from another set of lights which never got used and was hoping to use that as its much better quality.

    What i want to know though is how can i get my 12v lighting powered from this? What do i need to install before the cable reaches the first bulb?
     
  2. Taylortwocities

    Taylortwocities

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    Another transformer to turn your 24v to 12v !

    If the lights are 12v, your only practical option is to get a 12v transformer.
     
  3. Keithmac

    Keithmac

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    Wire your 12v lights in series pairs if you can manage it.

    You can wire all the pairs teed off the 24v main wiring feed.

    Only downside is if one light fails it's paired light will also not work.
     
  4. adzyp

    adzyp

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    Unfortunately the lights are already installed and arent accesible without doing a bit of digging. They are just linked to together so first light connects to the next etc. And the last one is just capped off
     
  5. Keithmac

    Keithmac

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    Can you fit 24v bulbs in your fittings?.

    Other option is some form of load reducing resistor in series?.
     
  6. adzyp

    adzyp

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    Sorry no, forget to mention they are LED lights
     
  7. Keithmac

    Keithmac

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    If you put "DC 24v to 12v Converter" in ebay the first hit is a waterproof one for £13..
     
  8. adzyp

    adzyp

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    Thanks, do i need to worry about wattage with those? Assume it will only push out whats going in?
     
  9. EFLImpudence

    EFLImpudence

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    Why?

    How much are 240VAC 12VDC transformers?
     
  10. Keithmac

    Keithmac

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    Do you know the current draw of your LED lights, how many have you got?.

    They normall take next to no current (amperage) so that shouldn't be an issue.

    You can always send them a message and ask?.

    It has a pretty big heatsink.

    Search 192007762971 in ebay (item number), 10 amps @ 12v output.
     
  11. Taylortwocities

    Taylortwocities

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    10amps? That's a lot for a few LEDs.
     
  12. adzyp

    adzyp

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    Well to start, im finding it hard to find an 'out of the box' transformer that will do the job.

    I need a 12v and around 6-10w output to power about 15 led decking lights. The connection coming off it need to be a 1 pin.

    As i already have this one (albeit a 2 pin) i was hoping to just cut the end of and connect the wires plus whatever else needs to be done.

    If anyone can point me in the direction of a suitable out of the box job then i will obviously consider
     
  13. winston1

    winston1

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    No such thing. Transformers by definition produce AC.
     
  14. winston1

    winston1

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    Any 12 v 1 amp DC power supply will do anything it, Maplins, ebay etc.
     
  15. adzyp

    adzyp

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    Thanks, putting it that way makes it sound much easier. Assume i just get any and cut off whatever connector comes with it and join my wire to it?
     
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