back when my commute was not 5 steps down the hallway...... It always went from darkish to DARK, after the fall back time shift, and much of my go home commute is a MUP trail, that is super dark. No problem.....I have a pair of 1100 lumen lights, but even with those I have to be a little more careful of the people out there running in all black with no reflective pieces at all