Originally Posted by
unterhausen
I don't think you can fry an XRE with a Sturmey dynohub. I'm not sure I believe you have good enough heat sinking though.
Is it the JB Weld or the bolt and nut?
Originally Posted by
znomit
Yeah the JB Weld heatsinking to the bolt might be a little iffy but the circuits on Pilom.com are solid.
The general idea is a bike dynamo puts out no more than 500mA so modern power LEDs are fine.
Get some thermal glue from DX too.
Like
this?
I have some 1" square aluminum tubing stock left over from rebuilding a trailer. Perhaps I can use that to build a light, and make the whole body the heatsink. Hmmm...