I am finally getting around to replacing my old home made but really bright headliights that I use for commuting. On a long day I need to have lights that will last 1-1/2 or 1-3/4 hours (2 hours if I want to add some safety margin) to ensure that I don't get stuck in the dark on the way home.

I have narrowed the field to two choices and was wondering if anyone has used or used ether of these lights? Price wise thet are just about equal, but from what I understand the Cygolite has a shorter burn time; but is slightly brighter and the batteries are less expensive to replace when they eventually fail.

CygoLite TridenX LED Li-Ion Headlight



or the Niterider Tri-Newt


If anyone has any experience with these (or something similar) please let me know.