NITECORE MH23 1800 Lumen Compact Flashlight w/NL1835HP 3500mAh Battery, UM10 Charger +FREE Eco-Sensa Battery CaseHigh performance rechargeable palm-sized spotlight Utilizes a CREE XHP35 HD LED to emit a maximum output of 1800 lumens Crystal Coating Technology combined with Precision Digital Optics Technology for extreme re ector performance A maximum beam intensity up to 21600cd and a maximum beam distance up to 294 meters Utilizes a two-stage power switch to control all functions High e cient constant circuit with runtime of 330 hours Integrated power indicator light displays remaining battery power (Utility Model Patent, NO. ZL201220057767.4) Power indicator displays battery voltage (accurate to 0.1V) Intelligent Li-ion battery charging circuit (via Micro-USB charging port) Integrated advanced temperature regulation (ATR) technology Reverse polarity protection Optics lens with anti-re ective coating Constructed from rugged aero-grade aluminum alloy Rugged HAIII military grade hard-anodized aluminum alloy IPX8 waterproof (2 meters submersible) Impact resistant to 1.5 meters Tail stand capabilityOutput & Runtimes Turbo: 1800 lumens / 30min High: 760 lumens / 1hr 45min Mid: 260 lumens / 4hr 45min Low: 55 lumens / 19hr Ultra-low: 1 lumen / 300hrDimensions Length: 4.38(111.3mm) Head Diameter: 1.25(31.8mm) Tail Diameter: 1(25.4mm) Weight: 3.39oz(96.2g)Includes USB cable holster clip lanyard rubber cover spare O ring