ThruNite TC10 USB Interface Rechargeable Tactical LED Flashlight, Neutral 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. 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.