This Nitecore P20iX flashlight features a maximum output of 4,000 lumens and an advanced optical system with crystal coating and "Precision Digital Optics Technology". It boasts a max peak beam intensity of 12,200cd and a max throw of 221 meters. The highly efficient constant current circuit ensures a stable output for up to 350 hours. It is powered by a NL2150i battery, which is USB-C rechargeable (5000).