The Nightstick USB-558XL rechargeable tactical flashlight is multi-functional cycling between high medium and low modes with an optional strobe when you press twice in succession.It uses a cree led rated at 900 lumens on high for 2 hours but can be extended up to 16.75 hours in low mode (100 lumens).The USB-558XL is rated ip-x7 waterproof chemical heat and impact resistant 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.The flashlight can also run on 2 cr123 batteries for back up power.The flashlight is serialized for personal identification comes with a 2' usb charging cable lithium-ion rechargeable battery and cr123 battery carrier (batteries not included).Features / SpecsMaterial: 6061-T6 Aluminum/AnodizedType: RechargeableOutput: 900/350/100 LumensBulb Type: Cree LEDBody Diameter: 1"Oal: 5.90"Weight: 5.70 ozBattery: Rechargeable Li-ionProofs: Waterproof Heat Impact ResistantColor: BlackHead Diameter: 1.20"Rechargeable: YesSwitch Type: Push Button TailLooking for a different model? Score big savings and fast shipping on all our best-selling Nightstick Flashlights and Accessories available online at Ammunition Depot.