Originally Posted by
Unknown Cyclist
A regulator can reduce the voltage, but can't increase the current.
In any case it would be inefficient, it would be far better to use some LEDs in series.
The P7 is 4 LEDs in parallel.
The MC-E LED can be series or parallel, so would be a better choice.
Could you mod the P7 and rewire them in series? Or is is just easier to buy loose LEDs?