On/off
Press and hold the switch for 0.5 seconds or double click the switch to turn on the lamp.
Press and hold the switch for 0.5 seconds to turn off the lamp.
Mode switching
With the lamp switched off, press and hold the switch for 0.5 seconds to turn on the lamp and enter the white light mode.
With the lamp switched off, quickly double click the button to enter red light mode.
Output selection
White light mode: single click the switch to cycle through Low→Med→High→Turbo.
Red light mode: single click the switch to cycle through Constant-on→Flash.
Lockout Function
Lock: with the lamp switched off, press and hold the switch for 3 seconds, the lamp will blink 4 times on the Low output of white light mode to indicate locked status.
Unlock: with the lamp locked, press and hold the switch for 3 seconds, the lamp will be activated on the Low output of white light mode.
In locked status, clicking or pressing the switches will activate 4 blinks on the Low output of white light mode to indicate locked status.
Battery Specifications
Type | Dimensions | Nominal voltage | Usability |
|
Fenix ARB-L18 Series | 18650 | 3.6 V | Recommended | √√ |
Fenix ARB-L16 Series | 16340 | 3.6 V | Usable | √ |
Non-rechargeable Battery (Li-ion) | CR123A | 3.0 V | Usable | √ |
Rechargeable Battery (Li-ion) | 18650 | 3.6 V | Caution* | ！ |
*18650 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. Quality Li-ion battery with protective circuit will reduce risks.
Battery Replacement
Unscrew the battery cover counterclockwise to insert the battery in accordance with the polarity marks, then screw the battery cover back on.
Charging
1. Turn off the light and unscrew the battery cover counterclockwise to take out the battery, then connect the USB Type-C end of the charging cable to the battery.
2. The indicator of the battery will display red while charging, and will turn blue when fully charged.
3. Once charging is completed, be sure to unplug the charging cable and insert the battery in accordance with the polarity marks, then screw the battery cover back on.
Battery Level Indication
With the light switched off, single click the side switch to check the battery status, the indicator in the switch will last for 3 seconds. Each time the light is turned on, the indicator will show the current battery level and will last for 3 seconds.
Green light on: 100% - 80%
Green light flashes: 80% - 50%
Red light on: 50% - 20%
Red light flashes: 20% - 1%
*Note: This only works with a Fenix ARB-L18 Series battery.
Intelligent Overheat Protection
The lamp will accumulate a lot of heat when used at high output levels for extended periods. When the lamp reaches a temperature of 50°C/122°F or above, it will automatically step down a few lumens to reduce the temperature. When the temperature drops below 50°C/122°F, the lamp will gradually recall the preset output level.
Low-voltage Warning
When the voltage level drops below the preset level, the headlamp is programmed to downshift to a lower brightness level until Low output is reached. When this happens in Low output, the lamp blinks 3 times every 5 minutes on the Low output of white light mode to remind users to recharge or replace the battery.
*Note: This only works with a Fenix ARB-L18 Series battery.
Headband Assembly
Notice: The headband is factory assembled by default.
Rotate the dial clockwise to tighten the headband, and rotate the dial counterclockwise to loosen the headband. When the headband hits its maximum length, keep rotating the dial and the operation direction will reverse.
Usage and Maintenance
- Disassembling the sealed body can cause damage to the lamp and will void the warranty.
- Fenix recommends using an excellent quality Fenix battery.
- If the lamp will not be used for an extended period, remove the battery, or the lamp could be damaged by electrolyte leakage.
- Lock the lamp or take out the battery to prevent accidental activation during storage or transportation.
- 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: The lamp is locked.
Solution: Press and hold the switch for 3 seconds to unlock the lamp.
B: Poor battery level.
Solution: Recharge or replace the battery (Ensure battery is inserted according to the manufacturer’s specifications).
C: 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 the distributor.
Warning
- Do NOT place this headlamp in the reach of children!
- Do NOT shine the headlamp directly into the eyes of anyone!
- Do NOT place the headlamp near flammable objects, high temperatures can cause objects to overheat and become flammable/ignite!
- Do NOT use the headlamp in inappropriate ways such as holding the unit in your mouth, doing so could cause serious personal injury or death if the headlamp or internal battery fails!
- This headlamp will accumulate a significant amount of heat while operating, resulting in a high temperature of the headlamp shell. Pay close attention to avoid burns.
- Turn off and lock the lamp or take out the battery to prevent accidental activation during storage or transportation.
- The LEDs of this headlamp are not replaceable; so the whole headlamp will need to be replaced when one of the LEDs reaches the end of its lifespan.
