Fenix Lighting TK11R Lithium Ion 1600 Lumens Luminus SFT40 LED Flashlight Black. Dual tail switches provide quick and easy access to three brightness levels and a Strobe mode. This flashlight is powered by an included single 18650 Li-ion battery or two CR123A batteries can be used as a backup power source. Check on the battery's status with the battery level indicator and recharge the light via the USB Type-C port. Impact-resistant and IP68-rated dust/waterproof round out the features that make the TK11R an affordable tactical performer. Specifications for Fenix Lighting TK11R Lithium Ion 1600 Lumens Luminus SFT40 LED Flashlight: Manufacturer: Fenix Flashlight Application: Outdoor Casual Color: Black Finish: Hard Anodized Fabric/Material: 6061-T6 Aluminum Light Output: 1600 lumens Battery Life: 25.5 hours Charger Type: USB Type-C Bulb Type: Luminus SFT40 LED Beam Distance: 1378 ft Lens Material: Glass Length: 5.73 in Weight: 4.14 oz Weather Resistance: Dustproof Water Resistance Level: IP68 Battery Type: Lithium Ion Package Type: Box Brightness Settings: 3 Features of Fenix Lighting TK11R Lithium Ion 1600 Lumens Luminus SFT40 LED Flashlight Uses one Luminus SFT40 LED with a lifespan of 50000 hours. Powered by one Fenix ARB-L18-3400 battery. Inner waterproof USB Type-C charging port. Instant Strobe. Intelligent memory remembers the last brightness level used. Dual tail switches for fast single-handed operation. Package Contents: Fenix Lighting TK11R Lithium Ion 1600 Lumens Luminus SFT40 LED Flashlight ARB-L18-3400 battery USB Type-C charging cable Lanyard Holster Spare O-ring Fenix Lighting TK11RXBK: TK11R Lithium Ion 1600 Lumens Luminus SFT40 LED Flashlight Black