The brightest headlamp isn’t necessarily the best headlamp for fishing. But the brightest headlamp in this review is the BioLite 750, which has a blinding 750 lumens. To save battery power, the headlamp burns on the brightest setting for 30-second bursts. The spotlight setting works best for searching out channel markers, docks, and the shoreline when you’re navigating at night. For upclose work, like tying knots, unhooking fish, and digging around in a gear bag, the headlamp has a lower light setting with a wide-angle lens that provides a softer, dispersed light that isn’t overkill.