Fenix HP12R-T Balanced Trail Headlamp — Reference ManualUpdated 2 hours ago

The Fenix HP12R-T is a separation-style trail running headlamp with independently controlled white light and neutral white light, plus a red-light battery case. This summary is drawn from the manufacturer's official user manual — see the downloadable PDF reference manual on the product page for complete details.

Overview

1300 lumens maximum output, 200 meters maximum beam distance.
Utilizes one Luminus SST25, one Luminus SST20 CRI80, and two 2835 red LEDs; with a lifespan of 50,000 hours each.
Cold white light, neutral white light, and red light support lighting needs in complex terrains and challenging weather conditions like rain, fog, and snow.
Dual switches design allows for separate control of the white light and the neutral white light, both of which can be turned on simultaneously.
Battery case features constant and flashing red light outputs for securing user safety during the night.
Electronic lockout and physical lockout avoid accidental activation.
Powered by a replaceable 4000mAh battery for longer runtime.
Lamp head is constructed from rugged aluminum alloy material, ensuring reliability and excellent thermal performance.
Perforated reflective headband — detachable and washable.
IP66-rated protection and 2 meters impact resistance.
Headlamp: 2.40" x 1.46" x 1.10" / 61 x 37 x 28 mm.
Battery case: 3.62" x 1.38" x 1.42" / 92 x 35 x 36 mm.
Weight: 7.02 oz / 199 g (including battery).

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 SOS.

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 and Constant-on.

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

Fenix ARB-L18 Series: 18650, 3.6V, Recommended.
Non-rechargeable Battery (Li-ion): CR123A, 3.0V, Usable.
Fenix ARB-L16 Series: 16340, 3.6V, Banned.
Rechargeable Battery (Li-ion): 18650, 3.6V, Caution* — use with care.

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

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.
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.
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 5V/2.5A 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%

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, 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.

Technical Parameters — White Light + Neutral White Light (Combined)

Turbo: Output 1300 lumens (13 W), Runtime 4 hours 40 minutes*, Distance 200 meters, Intensity 9973 candela
Low: Output 70 lumens (0.7 W), Runtime 18 hours 20 minutes, Distance 47 meters, Intensity 564 candela

Technical Parameters — White Light

Turbo: Output 1000 lumens (10 W), Runtime 5 hours*, Distance 170 meters, Intensity 6967 candela
High: Output 350 lumens (3.5 W), Runtime 16 hours 20 minutes, Distance 98 meters, Intensity 2412 candela
Med: Output 70 lumens (0.7 W), Runtime 30 hours, Distance 44 meters, Intensity 473 candela
Low: Output 5 lumens (0.05 W), Runtime 310 hours, Distance 12 meters, Intensity 36 candela

Technical Parameters — Neutral White Light

High: Output 500 lumens (5 W), Runtime 6 hours 10 minutes, Distance 130 meters, Intensity 4290 candela
Med: Output 200 lumens, Runtime 16 hours, Distance 79 meters, Intensity 1552 candela
Low: Output 70 lumens, Runtime 24 hours 30 minutes, Distance 47 meters, Intensity 551 candela

Technical Parameters — Headlamp Red Light / Battery Case Red Light

Headlamp Red Light, Constant-on: Output 5 lumens, Runtime 160 hours, Distance 4 meters, Intensity 5 candela
Headlamp Red Light, SOS: Output 5 lumens, Runtime 320 hours
Battery Case Red Light, Constant-on: Output 3 lumens, Runtime 108 hours
Battery Case Red Light, Flash: Output 3 lumens, Runtime 216 hours

All modes: Impact Resistance 2 meters, Waterproof IP66. *The Turbo output is measured in total runtime including output at reduced levels due to temperature or protection mechanism in the design. Specifications are based on ANSI/PLATO FL1 standard testing using one Fenix ARB-L18-4000 battery at 21±3°C and 50%-80% humidity — actual performance may vary by environment and the battery used.

Included

Fenix HP12R-T headlamp, ARB-L18-4000 battery, USB Type-C charging cable, 2 x Cable clips, User manual, Warranty card.

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