Originally Posted by
n4zou
Cree XR-E and SSC P4 emitters don't need C2 producing a lot of light at very low speeds. Bottle and Bottom Bracket type dynamos don't need C1 but hub type dynamos do need C1, unless you want the headlight flashing at very low speed making you very visible.
Interesting, thanks. Well, I bought a cap for C2 (in fact, a few values, since I will probably be varying the number of LEDs), so I may as well get the boost.
While I'll use a hub, I am not worried about the flicker, since I'm making a "be seen" light. I'm doing front and rear, and at this stage I'm happy to avoid having to make more of a housing for the lights. I'm using a
flare optic which I'll put in some Al U-channel, and no other housing...
Incidentally, I was just in REI, and they had a few utility/commuter bikes with hub dynamos
and generic incandescent bulbs!? Crazy in this day and age, but I suppose it saves $15 or something on the price of the bike.