Originally Posted by
Road Fan
This was one of my thoughts, too, earlier in this discussion. But while that loss of energy transfer is a down check to efficiency, it might be compensated by high intensity magnetic fields, lack of mechanical drag, possibly more efficient LEDs and possibly better LED drive strategy (i.e. lower current, more advantageous operating point). I still think it needs a test. I can't do it, however.
You don't need the Magnic to take advantage of these. I'm skeptical that the LED's being used in the Magnic are any more efficient than what are being used in good generator lights.
I suspect that the energy obtainable from the eddy currents is very limited (much lower than what is available from a generator hub). One issue is whether you can get enough light from the energy that can be produced.
We don't have any idea whether ratio of usable energy to drag is better than a hub generator. (Ideally, we'd want 100% usable energy to drag.)