Not XML2?? You gotta be jokin, I just paid hundreds to replace all my flashlights with the latest XML2 models!!!Cree xm-l are pretty much "the" leds these days. They can put out up to 1000LM, but to do that you need to sink a lot of heat. http://www.cree.com/LED-Components-and-Modules/Products/XLamp/Discrete-Directional/XLamp-XML