Klarus XT15 USB Rechargeable Waterproof LED Flashlight with Battery, Dark Grey 3 brightness settings plus Strobe; 1020 lm/2.1 hr - 230Lm/6 hr - 17Lm/150 hr Smooth reflector for a hot spot with a beam distance of 355 meters Patented magnetic fast connection charging System utilizes a standard USB port for charging Custom Klarus 2600Mah 3.7V rechargeable li-ion Battery automatically aligns polarity USB rechargeable interface on side of flashlight with visible charging status