Open the original headlight I can see the wire from the dynamo goes into the inside and another pair of wire goes back out to the tail lights.

    There are so electronic inside and seem to be powering both the headlight and taillight.

    On the Amazon page someone said they upgraded easily. It’s a Shimano dynamo. Does this make any difference to my SON?

    Review on Amazon: perfectly upgrades my existing Brompton dynamo light! https://a.co/d/frAKnbt

    The IQ-X come with one pair of wire. How to connect the tail lights?

    If I just connect both head and tail lights and the dynamo in parallel would this work? Will the Brompton taillight just light up?

    by youngermann

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