I've got the M6 in incandescent. You will like the difference. Being able to change the brightness is nice. It also has a slightly smaller form factor. I've been looking for the right light for about 10 years, especially after they started putting good LEDs in them. Surefire, Pelican, Maglights, Photons, & knock-offs of all these lost to the Fenix. Unless I find one with MSHA approval or need to put a light somewhere (dome light in the trunk of the car) I've quit looking after getting the L2D CE Fenix and a 1 AA body to go with it. If I need more than dunkable from it, I can always wrap with electrical or duct tape.