The DesignShine seems to have a very robust mount system - I particularly like the fact that when you install the light on the bracket, it prevents the quick release from flipping up, and to release the light from the bracket you have to depress a plunger on the side.
It does only have bar mount options, but I have no problems fabricating other mounts since it has threaded screw holes on the unit, I can make whatever bracket I need and screw the light to it.
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Work: the 8 hours that separates bike rides.