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  1. Hello,
    I’m installing my new SON edelux II frontlight and SON backlight on my bike.

    I’m wondering where I have to put the “ground” cable ending of the backlight? Do I simply have to place the round opening between the screw when I mount the front light with the bracket/screw on my bike? 

    Thanks for your help! Let me know if you need more information.

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