Acebeam T37 Tactical 21700 USB-C Rechargeable Battery 4000 Lumens LED Flashlight Black T37 Black. Equipped with a single SFT-90X 6500K LED it produces a highly concentrated beam of light for superior focus and intensity reaching up to 4000 lumens and a distance of 440 meters. The rotary magnetic switch allows for easy and precise access to five different modes including instant Turbo and Strobe. Its two-stage tail switch offers both momentary and constant-on functionality providing versatility based on your needs. Additionally the flashlight features a hidden USB-C charging port allowing you to recharge the 21700 battery back to full power in just 2.5 hours with a runtime of up to 72 hours in Ultra Low mode. Combining handling power and precision the ACEBEAM T37 is crafted for those who require exceptional performance from their flashlight. Specifications for Acebeam T37 Tactical 21700 USB-C Rechargeable Battery 4000 Lumens LED Flashlight: Manufacturer: Acebeam Flashlight Application: Tactical Color: Black Finish: Hard Anodized Fabric/Material: Aircraft-grade Aluminum Alloy Beam Color: White Light Output: 4000 lumens Battery Life: 72 hours Charger Type: USB-C Bulb Type: LED Beam Distance: 440 m Diameter: 1.03 in Bezel Diameter: 1.18 in Bezel Type: Strike Length: 5.71 in Weight: 7.1 oz Weather Resistance: Dustproof Impact Resistant Water Resistant Mark: 1.5 m Water Resistance Level: IP68 Battery Type: 21700 Features of Acebeam T37 Tactical 21700 USB-C Rechargeable Battery 4000 Lumens LED Flashlight Powered by a single SFT-90X 6500K LED it delivers a highly concentrated beam of light for superior focus and intensity reaching up to 4000 lumens and a distance of 440 meters. Rotary magnetic switch allows for easy and precise access to five different modes including instant Turbo and Strobe. Two-stage tail switch offers both momentary and constant-on functionality. Hidden USB-C charging port allowing you to recharge the 21700 battery to full power in 2.5 hours with a runtime of up to 72 hours in Ultra Low mode. A Strike Bezel with the sturdy pointed edge as a reliable tool for self-defense and can easily break glass in emergencies. Monitor your power levels at a glance with a battery indicator knowing exactly when to charge your flashlight. Battery replaceable when your battery begins to run low easily swap it out to ensure your flashlight remains powered. Boasts a rugged IP68 waterproof and dustproof rating making it your reliable companion in any environment. Package Contents: Acebeam T37 Tactical 21700 USB-C Rechargeable Battery 4000 Lumens LED Flashlight 1 x 21700 Rechargeable Lithium-ion Battery Acebeam T37 Black: T37 Tactical 21700 USB-C Rechargeable Battery 4000 Lumens LED Flashlight Black