Thread: 12 volt light on a bike?
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Old 08-26-10 | 08:41 AM
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cyccommute
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Originally Posted by znomit
See below.

Originally Posted by jeisenbe
Not necessarily true. Generators are expensive, and this light (E3 Triple) is expensive too, but it puts out 800 lumens, just as much as the Magicshine, at high speed:
http://www.peterwhitecycles.com/supernova.asp
The operative phase being at high speed. What speed is "high speed"? 5mph, 10mph, 20mph? Might work well for downhill mountain biking but won't work at all for uphill. I can point you to any number of climbs around Colorado that would impossible for even a strong rider to maintain 5mph. And what happens when you stop? If you are in the middle of the woods on a bike that you can only generate light by turning the wheel at 5mph, you could be stumbling around in the dark a whole lot. There are any number of places where it's prudent...even in full daylight...to walk a section. What then?

Sorry but for riding trails, you want a steady light output that is independent of speed. That cuts dynamo lights out of the equation.
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