The title pretty much sums it up. I can use 4 of my drivers set to draw 2.5 amps each from two 12 Ah NIMH D cells for a total current draw of 10 amps from the cells. Driving four K-2 luxes, this brute will pump out around 500 lumens for over an hour. 2D form factor using only 2 cells, and blinding output. Oh, and yes, that's 20 watts of high power LED light.

I will have this mod done as soon as I get the K-2's from 4sevens.