The oval tail switch is the functional switch for output selection and instant strobe.
On/off
Tap the tactical switch to silently and momentarily turn on the light, release the light will go out.
Fully press the tactical switch to constantly turn on the light, press again the light will go out.
Output Selection
With the light switched on, single click the functional switch to cycle through Low→High.
Strobe
With the light switched on, press and hold the functional switch for 0.5 seconds to enter strobe,
click the functional switch once again to turn back to the general mode.
With the light switched off, press the functional switch to momentarily enter strobe, release the
light will go out.
Intelligent Memory Circuit
The light memorizes the last selected mode excluding Strobe. When turned on again the
previously used mode will be recalled.
Battery Specifications
Type
Dimension
Nominal
Voltage
Usability
Fenix ARB-L21 Series
21700
3.6V
Recommended
√√
* It is prohibited to use 18650, 16340 or CR123A batteries.
* 21700 Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution
and handled with care. Only use 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
Unscrew the light tail and insert the battery with the anode side (+) towards the light head,
