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  • I have been using same front with a toplight line brake+ with zero issues for 6 or 7 years, always rely on my Luxos reassuring me with the little green light. Seems to me like maybe the rear has gone on the blink. Are there any obvious signs of moisture or rattling broken somethings in there? I assume not as you don't mention.

  • No signs of anything broken with the rear. My Luxos U start flickering when it's wet and wonder if it would have anything to do with that.

    I need to find a way to test the rear light with power with things I have around the house.

    Tried with a multimeter for circuit continuity and I do not get a sound/0 on it. The same applies when I test the Luxos U output. Not sure is it means anything as the green light turns on.

  • Course, you’re right to be careful and check it isn’t the Luxos ... mine is doing a thing where the low power daylight leds don’t ever turn themselves off, at least not for days & days.

  • You can connect the dynamo directly to the rear light using the same spade connectors and spin the wheel by hand to see if there's any signs of life.

    I wouldn't ride it like this, as not all rear lights can take the full voltage.

    Don't read too much into the voltage mesaurement. As long as it's getting something it should work, as dynamo specs are very fuzzy.

  • Tried with a multimeter for circuit continuity and I do not get a sound/0 on it. The same applies when I test the Luxos U output.

    Fwiw this is a good thing, hearing the beep would suggest a path of v low resistance between the terminals - a fried component or other short circuit.

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