Fatboyclone,
A few members of this Forum have my lights, here is the link to my thread in TFL, Forums.
http://thefiringline.com/forums/showthread.php?t=169074
The Best of Surefire is the Surefire M-6 (500 lumens six 123's batteries for a 20 minutes run time)
My MAG 951 II offers 45 minutes run rechargeable (so FREE to run) and 951 lumens or with the upgrade Rolls Royce carrier 1050 lumens.
Here is a shoot-out at 43 yards (camera at 15 yards)
Surefire M-6 500 lumens
MAG 951 II (951 lumens rechargeable)
Such light have been compared as to have a high beam truck light in your hand "but better".
If you look directly into the light you will see starts for 2 minutes, so any adversary is neutralized and blinded.
black bear