Operating Instructions

On/off

On: with the lamp switched off, press and hold the switch ① or switch ② to turn on the white light or neutral white light.  

Off: in any mode, press and hold for 0.5 seconds to turn off the lamp.

Mode Switching

The white light mode and the neutral white light mode are separately controlled by their respective switches.

With the lamp switched off, double click either switch to enter the red light mode.

Output Selection  

In the white light mode, single click the white light switch to cycle through Low→Med→High→Turbo.

In the neutral white light mode, single click the neutral white light switch to cycle through Low→Med→High.

In the red light mode, single click either switch to select between Constant-on and Flash.

Battery case red light mode

On/off: press and hold the battery case switch for 0.5 seconds.

Output selection: single click the battery case switch to select between Flash(5 lumens) and Constant-on(5 lumens).

Intelligent Memory Circuit  

The lamp automatically memorizes the last selected output of each mode. When turned on again, the previously used output of the currently selected mode will be recalled.

Lockout Function

Lock: with the lamp switched off, press and hold the two switches simultaneously for 3 seconds, the lamp will blink 4 times on the Low output of the white light to indicate locked status.

Unlock: with the lamp locked, press and hold the two switches simultaneously for 3 seconds, the lamp will blink 4 times and activate on the Low output of the white light to indicate the lamp is unlocked.

Note:  

1. In locked status, the battery case can be operated. Still, other operations except for unlocking the headlamp will activate 4 blinks on the Low output of the white light to indicate locked status.
2. In locked status, re-inserting the battery will automatically unlock the headlamp. 

Battery Specifications

*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. It is recommended to use a Fenix ARB-L18 Series battery.

Battery Replacement

Unscrew the battery cap and insert the battery with the anode side (+) towards the inner side, then screw the battery cap back on.

Charging  

1. Uncover the anti-dust cap on the battery case and plug the USB Type-C side of the cable into the port on the battery case.
2. When charging, the LED indicators will flash from bottom to top to display the charging status. The four indicators will be constant-on after charging is completed.
3. With the lamp switched off, the normal charging time of the Fenix ARB-L18-4000 battery is about 3.5 hours from depleted to fully charged with a 5 V/2.5 A or above charging adapter.  

Note:

1. The lamp can be operated while charging.
2. Once charging is completed, be sure to unplug the charging cable and close the anti-dust cover.

Battery Level Indication  

With the battery case switched off, single click the battery case switch to check the battery status. Single click once again and the indicator(s) will go out, or without any operation the indicator(s) will last for 3 seconds.  

Four lights on: 100% - 80%

Three lights on: 80% - 50%

Two lights on: 50% - 40%

One light on: 40% - 20%

One light flashes: 20% - 1%

*Note: This feature only works with a Fenix ARB-L18-4000 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 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 lamp will gradually recall the preset output level.

Low-voltage Warning

When the voltage level drops below the preset level, the lamp is programmed to downshift to a lower brightness level until the lowest output of the currently selected mode is reached. When the white light and the neutral white light are turned on at the same time, the lamp will automatically turn off the neutral white light and keep the Low output of the white light on. However, if the neutral white light is turned on alone, the lamp will automatically turn off the neutral white light and turn on the Low output of the white light. When the voltage level is still too low in the lowest output of the currently selected mode, the headlamp blinks 3 times every 5 minutes on the Low output of the white light to remind users to replace or recharge the battery in a timely manner.

Headband Assembly  

Notice: The headband is factory assembled and ready to use right out of the package.

Adjust the headband by sliding the buckle to the required length.

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.  
• Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring with an approved spare.
• Recharge a stored lamp every four months to maintain the optimum performance of the battery.
• Poor battery level may cause the lamp to flicker, shine intermittently or even fail to illuminate, please recharge the battery case in a timely manner. If this method doesn'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 lamp 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.
• Turn off and 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. 

What kind of LEDs are used in HP12R-T? Does Fenix offer to replace LED?

A: A Luminus SST25 cold white light LED and a Luminus SST20 neutral white light LED;  

Fenix does not provide LED replacement services for the time being, and users are not recommended to replace the LEDs independently, which may affect product performance and cause product damage.

What is the working voltage of HP12R-T?

A: The working voltage is 2.8 V~7.0 V. The limiting working voltage is 2.7 V~7.0 V.  

What is the color temperature of HP12R-T?

A: 4000K - 6500K.

Is HP12R-T rechargeable? How long is the charging time?  

A: The HP12R-T’s battery case features a USB Type-C charging port. The normal charging time of the included battery is approximately 3.5 hours from depleted to fully charged.

Can the HP12R-T be used in adverse weather conditions, such as rainy days or sandstorms?  

A: The HP12R-T features IP66-rated protection. It can withstand heavy rain and splashing and is totally protected against dust and foreign objects as rated.

Why does the HP12R-T happen to flicker?

The reasons that may cause the lamp to flicker, shine intermittently or even fail to illuminate:

A: The lamp is locked.

Solution: Press and hold the two switches simultaneously for 3 seconds to unlock.

B: Poor battery level.

Solution: Recharge or replace the battery.

C: The contact point or contact of the battery or headlamp 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.

Why does the HP12R-T downshift to a lower mode after being used for a while and the higher mode cannot be selected?

A: When the voltage level drops below the preset level, the lamp is programmed to downshift to a lower brightness level until the lowest output of the currently selected mode is reached. When the white light and the neutral white light are turned on at the same time, the lamp will automatically turn off the neutral white light and keep the Low output of the white light on. However, if the neutral white light is turned on alone, the lamp will automatically turn off the neutral white light and turn on the Low output of the white light. When the voltage level is still too low in the lowest output of the currently selected mode, the headlamp blinks 3 times every 5 minutes on the Low output of the white light to remind users to replace or recharge the battery in a timely manner.

Does the HP12R-T feature intelligent memory circuit?

A: Yes. The HP12R-T automatically memorizes the last selected output of each mode. When turned on again, the previously used output of the currently selected mode will be recalled.

How to prevent accidentally activate the HP12R-T?  

Lock: With the lamp turned off, press and hold the two switches simultaneously for 3 seconds, the lamp will blink 4 times on the Low output of the white light mode to indicate locked status.

Unlock: With the lamp locked, press and hold the two switches simultaneously for 3 seconds, the lamp will be activated with 4 blinks and activates on the Low output of the white light mode.

Note:  

• In locked status, the battery case can be operated. Still, other operations except for unlocking the headlamp will activate 4 blinks on the Low output of the white light to indicate locked status.
• In locked status, re-inserting the battery will automatically unlock the headlamp.

What should I do when the HP12R-T needs repair?

1. 15-day replacement: Fenix will replace identical or equal products with documented manufacturing defects within 15 days of purchase.
2. 5-year free repair: Fenix will repair a light free of charge within 5 years (rechargeable battery: 1 year) of purchase if problems develop with normal use.
3. Lifetime maintenance: If repair is required after 5 years from the date of purchase, Fenix will charge for parts. The total repair fee is dictated by the cost of the replaced materials.
4. If you need warranty service, fill out the warranty form at https://www.fenixlighting.com/pages/warranty-repairs to start your repair claim.