Operating Instructions
Mode Switching
In any state, rotate the toggle switch to select the needed mode, rotate the toggle switch to the left end to enter the General mode, rotate the toggle switch to the right end to enter the UV mode, and to the middle to enter the Lockout/off mode.
On/off
With the light turned off and unlocked, tap the tactical switch to turn on the light silently, release it and the light will go out.
Fully press the tactical switch to constantly turn on the light, press again the light will go out.
Instant Burst
With the light turned off and unlocked, fully press the tactical switch for 0.5 seconds to enter the Burst output and maintain this output; single click the functional switch to shift to the Eco output or fully press the tactical switch to turn off the light.
Strobe Mode
With the light turned on, press and hold the functional switch for 0.5 seconds to enter the Strobe mode. Single click the functional switch or tap the tactical switch to recall the previously used output.
With the light turned off and unlocked, press the functional switch to enter the Strobe mode, release it and the light will go out.
Output Selection
General mode: with the light turned on, single click the functional switch to cycle through Eco→Low→Med→High→Burst.
UV mode: with the light turned on, single click the functional switch to select between UV high and UV low.
Lockout/off mode: with the light turned on, in any state, turn the toggle switch to Lockout/off mode to turn off and lock the light. Clicking or pressing the dual tail switches will not change the locked status.
Note:
Since UV light is generally invisible to the human eye, users may overlook its presence in bright environments. To prevent unnecessary loss or damage from accidentally leaving the UV light on, the battery level indicator in the functional switch will alternately flash red and green as a reminder when the UV light is activated.
Intelligent Memory Circuit
The light automatically memorizes the last selected output excluding Strobe. When turned on again the previously used output will be recalled.
Battery Specifications
Type | Dimensions | Nominal Voltage | Usability |
|
Fenix ARB-L18-4000 | 3.6 V | Recommended | √√ | |
Fenix ARB-L18 Series | 3.6 V | Recommended | √√ |
*Do not use a 16340 or 21700 battery.
**Do not mix batteries of different brands, sizes, capacities, or types.
**18650 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 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 light body and insert the batteries with the anode side (+) towards the light head, then screw the light body back on.
Charging
- Slide the port cover on the light tail to reveal the charging port, then connect the USB Type-C end of the charging cable to the light.
- The indicator will display red while charging and will turn green when fully charged.
- When charging fails or the batteries are reversely connected, the battery level indicator will flash red or remain off to remind users to check the batteries.
- The normal charging time is about 2 hours from depleted to fully charged with a 9 V/3 A charging adapter or about 4 hours from depleted to fully charged with a 5 V/2.4 A charging adapter.
Note: Recharge a stored light every four months to maintain the optimum performance of the battery.
Battery Level Indication
Each time the light is turned on, the indicator in the functional switch will indicate the battery level and will last for 3 seconds.
Green light on: 100% - 85%
Green light flashes: 85% - 50%
Red light on: 50% - 25%
Red light flashes(fast): 25% - 1%
*Note: This only works with a Fenix ARB-L18 Series 18650 rechargeable battery.
Low-voltage Warning
When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until the lowest output is reached. When this happens in the lowest output, the battery level indicator blinks red slowly to remind users to recharge or replace the battery in a timely manner. To ensure normal use, the light will not turn off automatically and will work till the battery level runs out or the battery protection is triggered. Turn off the flashlight will also stop the battery level indicator from flashing.
*Note: This only works with a Fenix ARB-L18 Series 18650 rechargeable battery.
Intelligent Overheat Protection
The light 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, it 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.
Usage and Maintenance
- Disassembling the sealed head can cause damage to the light and will void the warranty.
- Fenix recommends using excellent quality batteries.
- If the light will not be used for an extended period, remove the batteries, or the light could be damaged by electrolyte leakage.
- Lock the light, unscrew the light body a few turns or take out the batteries 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 light and battery contacts improves the light'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: Recharge or replace the batteries.
B: The contact or contact point of the batteries or light is 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.
