Originally Posted by
atkane
I bought a 1973 Schwinn Continental a few days ago and since it came with a dynamo-powered head lamp and tail light, I decided to retrofit them with LEDs and hook them up to a battery pack.
The most elegant solution for the lights is to use LEDs that have an E10 (miniature screw) base like the TLE-1S, which is a replacement for a flashlight.
http://www.batteryjunction.com/tle-1s.html
Now the questions: Is 50 lumens going to be enough for me? Are there other places to look for similar (stronger) LEDs that have a base like that? Should I just abandon this approach altogether and use a different type of LED?
For a taillihgt, it would be pretty much enough if it was a RED LED. A white one placed in that red casing won't look any good. For a headlamp, no way. In that kind of a lamp, any E10 halogen will do much better. And, 1W Luxeon is quite dated. A different kind of LED with a different kind of optics is a way to go if you want more light, but this would spoil the idea of using that old headlamp.