Streamlight Pro-Tac 2.0 HP USB Lithium-ion Rechargeable 2000 Lumens LED Flashlight Black. 0 HP is optimized for balanced brightness producing 85000 candela and 2000 lumens without sacrificing run time. Powered by an SL-B50 battery that doesn't need to be removed from the light to charge. Specifications for Streamlight Pro-Tac 2.0 HP USB Lithium-ion 2000 Lumens LED Flashlight: Manufacturer: Streamlight Flashlight Application: Tactical Color: Black Finish: Anodized Fabric/Material: Durable Aluminum Beam Color: White Light Output: 2000 lumens Battery Quantity: 1 Battery Life: 2.5 - 31 hours Bulb Type: LED Beam Distance: 583 m Diameter: 1.02 in Bezel Diameter: 1.46 in Lens Material: Glass Lens Finish: Anti-Reflective Coating Length: 6.1 in Weight: 8.25 oz Weather Resistance: Impact Resistant Dustproof Water Resistant Mark: 1 m Water Resistance Level: IP67 Battery Type: Lithium Ion Features of Streamlight Pro-Tac 2.0 HP USB Lithium-ion 2000 Lumens LED Flashlight One-handed operation of momentary variable intensity or strobe mode TEN-TAP programming allows for selection of three different operating programs Battery charges inside or outside of the light with USB-C cord Package Contents: Streamlight Pro-Tac 2.0 HP USB Lithium-ion 2000 Lumens LED Flashlight SL-B50 Battery Pack USB-C Cord Nylon Holster Streamlight 89023: Pro-Tac 2.0 HP USB Lithium-ion Rechargeable 2000 Lumens LED Flashlight Black