Hey guys, i've had this light http://www.northerntool.com/shop/tools/product_200395694_200395694 for a few years and I recently got into the modding side of flashlights and would like to make this one brighter. Measuring the amps at the tailcap I get 1.2A. It looks like it takes a 20mm emitter and I found this one on DX http://www.dealextreme.com/p/cree-xr-e-r2-wg-emitter-on-premium-star-15943 . My main question is, will I need to replace the driver also to get the most out of the new emitter? The light uses 2 C batteries, but I always use 2 Eneloop AAs with C adapters.
Edited to add pics. Appears driver is 22mm...can't find that size anywhere!
Argh! After taking the pill apart, part of the driver broke. So i need a driver as well. Can anyone recommend a driver for the emitter i posted in the first post? Or a better emitter and driver? :)
Try looking for a driver that will, at a minimum, take 2.4V to operate (2AA NiMHs @ 1.2V = 2.4V). In fact, go with even less than that, because once your voltage starts to sag in those batteries it won't work anymore. Drivers exist that operate at less than a volt.
As far as current -- anywhere from 1 to 1.5 amps ought to do for that R2. Be sure to get your micrometer out and measure the diameter of the currently-existing driver to make the swap easier.