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multiple 12V LEDs on one transformer

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  1. #1
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    Default multiple 12V LEDs on one transformer

    I read somewhere on the 'net that the cause of flickering when replacing 12V halogen globes with LEDs in downlights (electronic transformers) is that the current draw from the LED is just a bit too low to kick on the transformer properly (so it flickers), and that if you run a few globes in parallel (like 2-3 - well below the max rating for the xformer), then it will be fine.

    So I decided to try it out in the safety of my lab (err work bench). Hooked it all up with a spare transformer, and whaddayaknow - it worked.

    Now my question is - is this legit for a sparky (not me, I know the deal) to do in my roof space?

  2. #2
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    Default

    Don't see why not as long as appropriate fire risk and mechanical protection precautions are followed. It seems to me that it will be an extra low voltage exercise and if the transformer plugs into a ceiling socket it will be an "appliance".

  3. #3
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    Default multiple 12V LEDs on one transformer

    Flicker is due to only takes low v for led to start its cause there is residue flow when switch is off can happen with two way switching also


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  4. #4
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    Unfortunately these are hard wired transformers (standard 'builders' halogen downlights), so I can't do it myself. Just was wondering if a Sparky would do it..

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  5. #5
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    Default multiple 12V LEDs on one transformer

    Why not just buy new led down lights
    These can be brought about 30 bucks why much around paying sparky to come out


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  6. #6
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    not sure I follow Gaza ..
    If I'm buying new downlights then I need to pay a sparky to install anyway (legally).
    If I'm replacing globes in downlights then I can do it myself, but then it flickers.
    Besides MR16 LED globes are much cheaper than 30 bucks.

  7. #7
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    Default multiple 12V LEDs on one transformer

    Maybe the code police can advise but if the lights have a plug base not hardwired maybe don't need sparky

    I am aware of a transform up grade you can get to stop flicker but these are not cheap


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  8. #8
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    Default

    These are hard wired. No plug base unfortunately.

  9. #9
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    Assuming the transformers are already in place and hard wired........... the input side (240v) may be hard wired but the output side (12v) is low voltage so I can't see why you can't do what you want to the output side.
    To legally replace the transformer a sparky is needed of course.

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