Is this dangerous?
Do you know some good and easy battery holders that could do (better if can be found on DealExtreme)?
Ultimately, I would like to use those to drive 2 or 3 seoul SSC-P4 LEDs. Possibliy using this regulator: http://www.dealextreme.com/details.dx/sku.6190
I'm also looking for good heatsinks, but heaven't found good ones yet on DX. Have to go to local store and look-out for copper or such parts, looks like it's the best option.