The USB-558XL USB rechargeable tactical flashlight uses an LED rated at 900 lm on high for 2 hr but can be extended up to 16.75 hr in low mode (100 lm). At only 5.9 inches long and weighing only 5.7 oz, 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 ft USB charging cable, lithium-ion rechargeable battery and CR123 battery carrier (batteries not included) for added convenience. Features: LED technology Momentary or constant-on flashlight Sharp focused beam Aircraft-grade 6061 T6 aluminum housing with Type III hard anodized finish IPX7 waterproof Chemical, heat and impact resistant Meets requirements of NFPA-1971-8.6 (2013) USB cord with rechargeable lithium-ion battery (included) Can also run on (2) CR123 batteries (not included) Serialized for personal identification Limited lifetime warranty Drop rating - 2 m