Features High and Low lighting modes and a runtime up to 24 hours. Powered by two 1.5V "AAA" cells (included). .5 watt high-flux, 100,000 hour life LED. Up to 14.5 lumens typical and up to 850 candela (peak beam intensity) (high mode); 6 lumens typical (low mode). Solid State Power Regulator provides maximum light output throughout battery life. Up to 6 hrs, runtime on high mode; up to 24 hrs, on low mode. Impact-resistant, drop-tested housing. O-Ring sealed construction. Waterproof to 1 meter for 1 hr. Facecap diameter: 1.3". Max. headlight with: 2.25". Max. headlight depth: 1.6" including head strap and mounting strap. 2.75 oz with battery and head strap. 2.75 oz with battery and head strap. Includes rubber/elastic combo head strap.
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