If the Dyno Hub only puts out 'X' W DC, thats all You got .. the Multimeter will tell .
Current ones Put out 3W6V, AC.. 2.4w front 0.6w rear, or 3w if no taillight load.
new LED headlights like B&M IQ2, the diode is facing down from the top,
its back attached to a heat sink..then re directed forward by the reflector
Last edited by fietsbob; 07-09-15 at 02:27 PM.