Fenix HT18R V2.0 Lithium Ion 3700 Lumens Luminus SFT90 LED Flashlight Black. The Fenix HT18R V2.0 Long-Distance Flashlight blasts a maximum output of 3700 lumens at an incredibly long distance of 3609 feet (1100 meters). This upgraded model introduces a dual side switch system allowing quick access to four brightness levels plus Strobe SOS and Beacon flashing modes. Press and hold the main switch for Instant Burst which activates full power without cycling through each brightness level. Powered by a high-capacity 6000mAh rechargeable battery this flashlight provides solid runtimes of up to 87 hours and charges through a USB-C fast-charging port thats reinforced with inner IP68 waterproofing and protected by a sliding dust cover. Built tough with aircraft-grade aluminum the HT18R V2.0 Long-Distance Flashlight is designed for professionals who work in tough environments and require maximum visibility over very long distances - over a quarter of a mile. Specifications for Fenix HT18R V2.0 Lithium Ion 3700 Lumens Luminus SFT90 LED Flashlight: Manufacturer: Fenix Flashlight Application: Casual Outdoor Color: Black Finish: Hard Anodized Fabric/Material: 6061-T6 Aluminum Light Output: 3700 lumens Battery Life: 87 hours Bulb Type: Luminus SFT90 LED Beam Distance: 3609 ft Lens Material: Glass Length: 7.86 in Weight: 12.64 oz Battery Type: Lithium Ion Package Type: Box Brightness Settings: 4 Features of Fenix HT18R V2.0 Lithium Ion 3700 Lumens Luminus SFT90 LED Flashlight Uses one Luminus SFT90 LED with a lifespan of 50000 hours. Powered by a Fenix ARB-L21-6000 battery. Neck-mounted inner waterproof USB Type-C charging port features a sliding anti-dust cover. Dual side switch for Instant Burst and Instant Strobe. Professional SOS and Beacon modes for outdoor emergencies. Boot-up battery level indication and low-voltage warning. Package Contents: Fenix HT18R V2.0 Lithium Ion 3700 Lumens Luminus SFT90 LED Flashlight ARB-L21-6000 battery USB Type-C charging cable Lanyard Holster Spare O-ring Fenix HT18RV2BK: HT18R V2.0 Lithium Ion 3700 Lumens Luminus SFT90 LED Flashlight Black