ThruNite TC10 USB Interface Rechargeable Tactical LED Flashlight, Cool White The First Rechargeable LED Flashlight of ThruNite! A single 18650 battery can be charged right inside the light, making clunky chargers obsolete With a simple USB cord(included), TC10 can be charged from the wall socket with an normal adaptor, laptops or desktop computers This light is sold with the battery, which protects the light and saves your time; Various indicating lights help you communicate with the light! The First Rechargeable LED Flashlight of ThruNite! A single 18650 battery can be charged right inside the light, making clunky chargers obsolete. With a simple USB cord(included), TC10 can be charged from the wall socket with an normal adaptor, laptops or desktop computers. No battery included. Five output modes are available, including a 0.1 lumen firefly mode and 900 lumen strobe mode. Each setting can be accessed easily by simply pressing the side switch. TC10 possesses a stout design for tactical use with a titanium coated stainless steel bezel and a 25.4mm (1- inch) light body for mounting on any proper devices.