Narrow Focused Beam - Small hot spot for maximum beam distance of 603 metres! The Acebeam L16 Flashlight has enough side spill to see on the sides as well, but is primarily a focused flashlight for big distances.
Rechargeable battery - The Acebeam L16 Flashlight includes an Acebeam IMR18650 rechargeable battery, but is also compatible with 2 X CR123A disposable batteries. - The battery is rapid-charged inside the Acebeam L16 Flashlight by connecting the built-in micro-USB port to any USB power supply, or the Lithium Ion battery can be charged externally.
Two Independent Switches with Turbo Boost Mode - Side switch for cycling between four brightness modes. Double click for Turbo Boost, Triple click for Emergency Strobe. - Tactical Tail Switch to instantly access Turbo Boost Mode, regardless of mode the light was in.
Stainless Steel Strike Bezel - Good for self defence in those situations that none of us really want to be in.
Advanced Thermal Protection - Temperature is electronically regulated so that the light does not overheat.
Side Switch: Click the side switch to ON/OFF. When the flashlight is ON, press and hold the side switch to cycle between different modes. - ON will memorize the last mode you selected without replacing the battery. - Double click the side switch to access Turbo mode and triple click access the Strobe mode, regardless of whether the flashlight is ON or OFF.
Tactical Tail Switch: Click the tactical tail switch for momentary on and constant activation of the Turbo mode regardless what the status of the flashlight is. * Note if you click the tactical tail switch first, the side switch does not work.
Lock Out: When the flashlight is OFF, press and hold the side switch for 3 seconds, the flashlight will Lock Out after 3 seconds. - The Firefly output is useless for side switch operation now, but click the tactical tail switch, and you can still access the Turbo mode.
Unlock: When the flashlight is Locked Out, press and hold the side switch for 3 seconds, the flashlight will Unlock and turn on in the Firefly mode.
Charging: The built-in charging function charges 18650 Li-ion battery through a micro USB port. The built-in power indicator RED means it's in charging status, indicator GREEN means fully charged.