The high-performance TA4 utilizes the CREE XP-G2 R5 LED to deliver up to 460 lumens.Rechargeable via USB cable,powered by the 18650 lithium-ion battery.Made of indestructible Mil-Spec grade 1''aluminum body,waterproof up to 2 meters and impact resistant up to 3 meters,the TA4 is able to withstand a wide variety of adverse environments.