High capacity Lithium Iron Phosphate LiFePO4 rechargeable battery Run time high is 1 hour 18 hours low mode LED flashlight with 671 Lumens Beam throw is 185 meters peak beam intensity 8545 Water-resistant IPX4 Long service life with a 25 hour charge time Detachable pocket clip USB-powered mountable charging base Design balanced optics provide superior beam performance Faceted knurl design Corrosion-resistant metal springs throughout Polycarbonate Lens National Tactical Officers Association certification Item weight with batteries 561 oz Drop resistance 1 meter