The USB-558XL USB Rechargeable Tactical Flashlight uses an LED rated at 1,100 lumens on high for 2 hours but can be extended up to 16.75 hours in low mode (100 lumens). At only 5.9 inches long and weighing only 5.7oz, this metal tactical flashlight is multi-functional, cycling between high, medium, and low modes with an optional strobe when you press twice in succession. The USB-558XL is rated IP-X7 waterproof and features a discretely sleeved collar that opens for direct USB charging. The built-in charging indicator turns from red to green when fully charged. Included is a 2 foot USB charging cable, lithium-ion rechargeable battery, and CR123 battery carrier (batteries not included) for added convenience.Features :LED technologyMomentary or constant-on flashlightSharp focused beamAircraft-grade 6061-T6 aluminum housing with Type III hard anodized finishIP-X7 WaterproofChemical, heat and impact resistantMeets the requirements for NFPA-1971-8.6 (2013)USB cord with rechargeable lithium-ion battery (included)Can also run on 2 CR123 batteries (not included)