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Thread: Using a dimmer before a buck boost transformer

  1. #1
    Junior Member
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    Feb 2020
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    Using a dimmer before a buck boost transformer

    Hi. I have some outdoor lighting (six MR-16 LED lamps, 5W each, 30W in all) that are powered by a buck-boost transformer. I'd like to dim them and my life would be way easier if I could drop something to replace the existing (dumb) switch, which (as one would expect) is before the transformer. Is this possible and/or is it a stupid idea?(I would hope to use a RadioRA2 compatible dimmer, if that matters.)Thank you

  2. #2
    Senior Member
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    Oct 2013
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    1,751
    Quote Originally Posted by TRH00 View Post
    Hi. I have some outdoor lighting (six MR-16 LED lamps, 5W each, 30W in all) that are powered by a buck-boost transformer. I'd like to dim them and my life would be way easier if I could drop something to replace the existing (dumb) switch, which (as one would expect) is before the transformer. Is this possible and/or is it a stupid idea?(I would hope to use a RadioRA2 compatible dimmer, if that matters.)Thank you
    Check with the transformer manufacturer to see if they have any recommendations.

    The RRD-6ND is a good choice for MLV transformers. The RRD-PRO will do MLV and ELV transformers.
    LED, Incorporated
    Raleigh, NC 27614

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