FWIW, GeoMan says that they will have a taillight (made by Magicshine) that will contend with the Dinotte 140L for a bargain price within a few weeks, so right now I'd buy a SuperFlash (it's always nice to have two taillights - you never know when one fails until you get to where you're going and find it's out) and wait to see what they come out with.
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Work: the 8 hours that separates bike rides.