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are approximate and may vary between flashlights, batteries, and environments.
*The flashlight will transfer into the High brightness level after working about 30 minutes in the
Turbo. Therefore, the runtime of Turbo output is an accumulated time.
Operation Instruction
Press the tail cap switch lightly to activate the flashlight momentarily (without any press, it will
be off); Press the tail cap switch completely to turn on the flashlight and lock it. Another press
will unlock it and turn it off.
When the flashlight is on, a single press on the side mode switch in the front will select the
brightness levels in the order of Turbo→Low→Mid→High;
Press and hold the mode switch button for about one second to enter into the Strobe. It will flash
between 6Hz and 15Hz every two seconds.
Under the condition of Strobe, a single press on the mode switch button will return the flashlight
to the general mode.
The flashlight memorizes the last brightness level used in the general mode even after changing
the batteries (it will not remember any flashing modes). The next time you turn on the flashlight,
it will light up at the last used general mode.
Overheating protection: TK15 will accumulate a lot of heat when it is working in Turbo output.
To avoid overheating, the flashlight will automatically transfer into the high brightness level
after working in Turbo output for over 30 minutes. If the Turbo output is needed continually,
just reset it again.
Notice: The video for TK15 operation can be watched and downloaded from Fenix official
website, please log onto the service channel ->light operation video.
Battery Specifications
Type
Fenix ARB-L2
Non-rechargeable Battery
(Lithium)
Rechargeable Battery
(Li-ion)
Rechargeable Battery
(Li-ion)
Rechargeable Lithium iron
phosphate battery
Rechargeable Lithium iron
phosphate battery
Warning: Please do not mix batteries of different brands, size, capacity or type. Doing so may
cause damage to the flashlight or the batteries being used.
*18650 Li-ion batteries are powerful cells designed for commercial applications and must be
treated with caution and handled with care. Quality batteries with circuit protection will reduce
the potential for combustion or explosion but cell damage or short circuiting are potential risks
the user assumes.
Battery Replacement
Nominal
Dimensions
Voltage
18650
CR123A
16340
18650
16340
18650
Usability
3.6V
Recommended
3V
Recommended
3.7V
Banned
3.7V
Cautious
3.2V
Usable
3.2V
Banned
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