change to one mode drivr. what to buy?

[rojo-toro]

hi
i bought from DX

Cree XR-E R2-WC 5-Mode 250-Lumen LED Drop-in Module for WF-502B and Flashlights Alike (3.6V~8.4V)

i need to chenge the driver to one mode.
but i don't know what to buy(not in KD or DX)

i am useing 4 NMH 1.2v size c. 9000mah for one =4.8v total

thank's
itai

 

[rojo-toro]

someone?

 

[sparkysko]

I find that usually the deciding factor is the driver size. Find out what diameter you need and go from there. You'll need a buck driver for best efficiency, or you can just wire up a couple ohm resistor inline.