Warning
- Do NOT place this light in the reach of children!
- Do NOT shine the light directly into the eyes of anyone!
- Do NOT place light head near flammable objects, high temperatures can cause objects to overheat and become flammable/ignite!
- Do NOT use the light in inappropriate ways such as holding the unit in your mouth, doing so could cause serious personal injury or death if the light or internal battery fails!
- This light will accumulate a significant amount of heat while operating, resulting in a high temperature of the light shell. Pay close attention to avoid burns.
- Remove the battery to prevent accidental activation during storage or transportation.
- The LED of this light is not replaceable; so the light will need to be replaced when the LED reaches the end of its lifespan.
Operating Instructions
On/off
Tap the tactical switch to silently and momentarily turn on the light, release it the light will go out.
Fully press the tactical switch to constantly turn on/off the light.
Turn the toggle switch from Lock to any designated output to constantly turn on the light, fully press the tactical switch or turn the toggle switch to Lock to turn off the light.
Output selection
Rotate the toggle switch to cycle through Lock⇄Low⇄High to select the required output or turn off the flashlight.
Strobe mode
With the light unlocked, fully press the tactical switch for 0.5 seconds to enter the Strobe mode. Tap the tactical switch again to return to the General mode.
Battery Specification
Type | Dimension | Nominal Voltage | Usability |
|
Fenix ARB-L21 series | 21700 | 3.6 V | Recommended | √√ |
Warning:
*It is strictly prohibited to use an 18650, CR123A, or 16340 battery.
*21700 Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution and handled with care. Using low quality batteries or mishandling batteries (such as short-circuiting or overheating) could lead to combustion or explosion and jeopardize the safety of users and property. Any adverse effects resulting from the use of low quality batteries are not covered by any Fenix warranty or liability. Using quality batteries with circuit protection will reduce the potential for combustion or explosion.
Battery Replacement
Unscrew the tail cap and insert the battery with the anode side (+) towards the light head, then screw the tail cap back on.
Charging
- Loosen the light neck to reveal the USB Type-C charging port and the battery level indicator.
- The indicator will display red while charging and will turn green when fully charged.
Battery level indication
Press the tactical switch, and the indicator (unscrew the light head to see) will indicate the battery level.
Green light on: saturated 100% - 85%
Green light flashes: sufficient 85% - 50%
Red light on: poor 50% - 25%
Red light flashes: critical 25% - 1%
*Note: This feature only works with a Fenix ARB-L21 series battery.
Intelligent Overheat Protection
The flashlight will accumulate a lot of heat when used at high output levels for extended periods. When the light reaches a temperature of 60°C/140°F or above, the light will automatically step down a few lumens to reduce the temperature. When the temperature drops below 60°C/140°F, the light will gradually recall the preset output level.
Low-voltage Warning
When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level. When the voltage level is still too low, the battery level indicator blinks red to remind you to recharge or replace the battery.
*Note: This feature only works with a Fenix ARB-L21 series battery.
Usage and Maintenance
- Disassembling the sealed head can cause damage to the light and will void the warranty.
- Fenix recommends using an excellent quality battery.
- If the light will not be used for an extended period, remove the battery, or the light could be damaged by electrolyte leakage or battery explosion.
- Turn the toggle switch to “Lock” or take out the battery to prevent accidental activation during storage or transportation.
- Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring with an approved spare.
- Periodic cleaning of the battery contacts improves the lamp's performance as dirty contacts may cause the lamp to flicker, shine intermittently or even fail to illuminate for the following reasons:
A: Poor battery level.
Solution: Replace or recharge the battery.
B: The threads, PCB board contact or other contacts are dirty.
Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol.
If the above methods don't work, please contact your authorized distributor.
