BTW, now that I've actually seen the ultra-fast flash mode, I actually like it. The slower flash mode was very distracting, the fast flash mode is constant enough to not disorient, but flashing enough to draw attention. IMO the ON OFF ON OFF at 3 hz, with the light on high, was like getting poked in the eye every time it switched on.
Now all I need to do is to find someone who wants to trade an old lighthead with long cord for a new one.
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Work: the 8 hours that separates bike rides.