On/off
On: with the light switched off, press and hold either of the two switches for 0.5 seconds to turn on the lamp.
Off: press and hold either of the two switches for 0.5 seconds to turn off the lamp.
Mode switching
With the lamp switched off, press and hold the white light switch for 0.5 seconds to enter the White light mode. Single click the warm white light switch to switch to the Warm white light mode.
With the lamp switched off, press and hold the warm white light switch for 0.5 seconds to enter the Warm white light mode. Single click the white light switch to switch to the White light mode.
With the lamp switched off, double click either of the two switches to enter the Red light mode.
Output selection
White light mode: with the lamp switched on, single click the white light switch to cycle through Low→Med→High→Turbo.
Warm white light mode: with the lamp switched on, single click the warm white light switch to cycle through Low→Med→High→Turbo.
Red light mode: in Red light mode, single click either of the two switches to cycle through Constant-on→SOS.
Lockout Function
Lock: with the lamp switched off, slide the lock switch down in accordance with the mark, the lamp will blink 4 times in the Low output of Warm white light mode to indicate locked status.
Unlock: with the lamp locked, slide the lock switch up in accordance with the mark, the lamp will blink 4 times in the Low output of Warm white light mode to indicate standby status.
Note:
With the lamp locked, any operation will activate 4 blinks in the Low output of Warm white light mode.
Lock the lamp when it is switched on, it will automatically turn off and enter the locked status.
The lamp may automatically unlock when exposed to a strong magnetic field.
Intelligent Memory Circuit
The lamp automatically memorizes the last selected output of each mode. When turned on again, the previously used output of the selected mode will be recalled.
Battery Specifications
Type | Dimensions | Nominal voltage | Usability |
|
Fenix ARB-LP1900 | Dedicated battery | 3.8 V | Recommended | √√ |
Alkaline Battery | AAA | 1.5 V | Usable | √ |
Ni-MH Battery | AAA | 1.2 V | Usable | √ |
Rechargeable Battery (Li-ion) | 10440 | 3.7 V | Banned | × |
*Do not mix batteries of different brands, sizes, capacities or types. Doing so may cause damage to the lamp or to the batteries being used.
*Only use the recommended or usable batteries mentioned in this user manual. Using low-quality batteries or mishandling batteries (such as short-circuiting or overheating) could lead to combustion 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. It is recommended to use a Fenix ARB-LP1900 battery.
Battery Replacement
Open the back battery cap to insert the battery in accordance with the polarity marks, then close the back battery cap.
Charging
- Uncover the anti-dust cap and plug the USB Type-C side of the charging cable into the charging port of the lamp.
- When charging, the indicators will flash from left to right to display the charging status. The four indicators will be constant-on after charging is completed.
- With the lamp switched off, the normal charging time of using a Fenix ARB-LP1900 battery is about 3 hours from depleted to fully charged with a 5 V/1 A or above charging adapter.
Note:
- Only Low output can be operated while charging.
- Recharge a stored lamp every four months to maintain the optimum performance of the battery.
Battery level indication
With the lamp switched off, single click either switch to check the battery status. Single click once again the indicator(s) will go out immediately, or without any operation the indicator(s) will last for 3 seconds. Each time the light is turned on, the indicator(s) will show the battery level and will last for 3 seconds.
Four lights on: 100% - 80%
Three lights on: 80% - 60%
Two lights on: 60% - 40%
One light on: 40% - 20%
One light flashes: 20% - 1%
*Note: This feature only works with a Fenix ARB-LP1900 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 55°C/131°F or above, it will automatically step down a few lumens to reduce the temperature. When the temperature drops below 55°C/131°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, one of the battery level indicators blinks to remind you to recharge or replace the battery.
*Note: This feature only works with a Fenix ARB-LP1900 battery.
Headband Assembly
Notice: The headband is factory assembled and ready to use right out of the package.
Rotate the dial clockwise to tighten the headband, and rotate the dial anticlockwise to loosen the headband. After loosening the headband to its maximum length, rotate the dial in either direction to tighten it.
Usage and Maintenance
- Disassembling the sealed head can cause damage to the lamp and will void the warranty.
- Fenix recommends using an excellent quality 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: Slide the lock switch to unlock the lamp.
B: Poor battery level.
Solution: Replace or recharge the battery.
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 lamp in the reach of children!
- Do NOT shine the lamp 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 lamp 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 lamp will accumulate a significant amount of heat while operating, resulting in a high temperature of the lamp shell. Pay close attention to avoid burns.
- Lock the lamp or remove the battery to prevent accidental activation when the lamp is placed in a closed and flammable environment such as pockets and backpacks!
- The LEDs of this lamp are not replaceable; so the whole lamp should be replaced when any one of the LEDs reaches the end of its lifespan.
