> >As for using LEDs as lighting, I've found that
> >pointing them backwards into a parabolic reflector
> >makes a much better lamp than pointing them forward
> 
> Hmm, that is interesting. Will pass that on to my biking colleague
> who is into making LED torches and bike lamps.

Couple of things to consider - LEDs have various beam angles
and on a bike it's more about being seen than seeing. Whichever
parameter dominates the design, at least you can run a heck of
a lot of LEDs for the same 500mA you needed for a single bulb

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