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 2.5 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: 5.61 oz. Drop resistance: 1 meter.