3, Battery Powered: single 18650 li-ion battery or 2* CR123A batteries
4, Voltage: 2.8-6.6 volts 5, Dimension: 143mm(length)× 35mm(head) 6, two tail switch (mode switch + tactical tail switch); and one side switch 7, Net Weight: 120±1 gram (no batteries included) 8, Toughened glass lens with Smooth Reflector 9, Low Voltage Protection: yes 10, Advanced temperature regulation (ATR) technology： It adjusts the brightness level automatically when the driver temperature reaches 50℃ to keep the light from overheat. 11, DTP MCPCB (Thermo-electric separation copper plate board): yes 12, water resistant: IXP7, can be used in rain (not used as diving flashlight underwater) The operation is a little bit complex, please feel free to check the user manual if you met any issues
More operation details, please check the user manual.
Note: please do not shine others' eyes directly or blind others!