Originally Posted by
sevenhills
I have a rear light similar to chipcoms' light; its not super bright but it does auto detect when to turn on and off, I have other lights too.
the battery-powered 4D toplight is brighter than a PBSF, isn't as angle sensitive, acts as a reflector when not lit and doesn't require jury-rigging with zip ties and other such nonsense.
I have a dynamo-powered toplight with the auto-sense and standlight functionality on my winter bike...it's not as bright as the battery-powered version.
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