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  • The bulbs I just bought from screwfix say dimmable. I've jsut replaced it as the one before flashed when dimmed. The noise is coming from the switch rather than the bulb.

  • The bulbs I just bought from screwfix say dimmable. I've jsut replaced it as the one before flashed when dimmed. The noise is coming from the switch rather than the bulb.

    That just means the bulb has a circuit in it that detects what the dimmer is trying to do and adjusts its brightness to match.

    The problem is most dimmers are simple cheap circuits that need a minimum load (i.e. number of watts) to work properly. LED bulbs can't compensate for that.

    You either need to get a different dimmer that's happy driving a small LED load or resign yourself to app-controllable bollocks.

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