Technical specifications Brightness: Up to 350 lumens Beam range: Up to 64 meters Runtimes: High mode: 350 lumens for 10 minutes, then 170 lumens for 100 minutes Low mode: 15 lumens for 37 hours Battery: Customized 14500 battery (3.7V, 1420mAh) with USB-C connection Material: Aluminum alloy with anodizing coating Water resistance: IPX8 (water resistant to a depth of 1.5 meters for 30 minutes) Size: 95.4 mm (length) × 17.8 mm (diameter) Weight: 60 grams