adding in resistor?

This topic contains 3 replies, has 3 voices, and was last updated by  caldirun 8 months ago.

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  • #25228
     xcentric says:

    xcentric
    Participant

    Have a new light over dining room table with 3 retro-style led bulbs, but their resistance isn’t enough to make them turn off when the light switch goes off. Can I wire a resistor into the switched live for them to increase the resistance and hence make them turn off? If not, what is the recommended approach (apart from trying with other bulbs, which I’ll look at but have little hope of success).
    thanks.

    #25232
     btidey says:

    btidey
    Participant

    The LED bulbs must be dimmable to work with Lightwaverf switches. Even when the switches are ‘off’ there is a small trickle current through the switch to allow it to extract power for the receiver. This is enough to turn on non-dimmable bulbs. Even then not all dimmable bulbs work well.

    You can’t put a resistor in series with the bulbs. Where a resistor can be used is to help with some situations where the total load is below the minimum. A special 10W ballast resistor can then be used in parallel with the bulbs to provide the minimum load.

    #25233
     xcentric says:

    xcentric
    Participant

    they are dimmable. think a ballast resistor is the way to go but they’re costly for what they are so will try other bulbs too…..

    #25235
     caldirun says:

    caldirun
    Participant

    Use the switch to drive a relay, unless you are using a dimmer switch.

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