Been several years since i built a saber. Looking at building a basic stunt saber using the red Cree LED module.

Planning on using a buckpuck, but haven't really messed with them before.

So if I'm thinking correctly I need at least a 4AA battery pack to provide enough voltage to run a buckpuck.

Says red Cree's run at 1000ma.

Do I also need a resistor between the puck and the LED to limit voltage down to the recommended 2.59? If so is a 3.9ohm, 3.9 watt correct?

Thanks for any help.