Fenix HP25R V2.0 Headlamp — Reference ManualUpdated 2 hours ago

The Fenix HP25R V2.0 is a rechargeable work headlamp with ultra-long runtime and a dual-switch design. 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

1600 lumens spotlight and 400 lumens floodlight.
One Luminus SST40 white light LED, one Cree XP-G3 S4 neutral white LED and one Everlight 2835 red light LED; with a lifespan of 50,000 hours.
Included a Fenix ARB-L21-5000 Li-ion battery, compatible with a 18650 Li-ion battery.
Separately controlled dual switch for easy and fast operation.
Lockout function avoids accidental activation.
USB Type-C charging port for easy and fast charging.
60° tilt mechanism directs the beam where needed.
Made of quality PC and aluminum, lightweight and wear-resistant.
Headlamp: 2.36" x 1.85" x 1.30" / 60 x 47 x 33 mm.
Battery case: 3.90" x 1.61" x 1.56" / 99 x 41 x 39.5 mm.
Weight: 8.40 oz / 238 g (including battery and headband).

Operating Instructions

Switches: General switch — for on/off and output selection on General mode. Functional switch — for on/off and output selection on Functional mode.

On/off: Press and hold either of the switches for 0.5 seconds to turn on/off the lamp.

Output Selection: General mode — single click the general switch to cycle through Eco → Low → Med → High → Turbo. Functional mode — single click the functional switch to cycle through Low → Med → High → Red Light → SOS.

Intelligent Memory Circuit: The headlamp memorizes the last selected output. When turned on again, the previously used output will be recalled. If the headlamp is turned off on High or Turbo level of Spotlight mode, when turned on again, it will be activated on Med output of Spotlight mode.

Lockout Function

Lock: when the lamp is switched off, simultaneously press the two switches for 3 seconds, the lamp will blink red four times to indicate locked status.

Unlock: when the lamp is locked, simultaneously press the two switches for 3 seconds, the lamp will be activated with 4 red blinks and activated on Red Light. In locked status, clicking or pressing the switches will activate 4 red blinks to indicate locked status.

Battery Specifications

Fenix ARB-L21 Series: 21700, 3.6V, Recommended.
Fenix ARB-L18 Series: 18650, 3.6V, Usable (with ALF-18 battery holder).
Non-rechargeable Battery (Lithium): CR123A, 3V, Banned.
Rechargeable Battery (Li-ion): 16340, 3.6V, Banned.
Rechargeable Battery (Li-ion): 18650, 3.6V, Banned.

Lithium batteries are hazardous products and must be handled with care in all 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.

Intelligent Overheat Protection

The lamp will accumulate a lot of heat when used at Turbo mode for extended periods. When the lamp reaches a temperature of 60°C or above, the lamp will automatically step down a few lumens to reduce the temperature. When the temperature drops below 60°C, it will then allow the user for the reselection of Turbo mode.

Low-Voltage Warning

When the voltage level drops below the preset level, the headlamp is programmed to downshift to a lower brightness level until Eco output is reached. When this happens in Eco output mode, the lamp blinks 3 times every 5 minutes to remind you to timely recharge or replace the battery.

Note: this only works with Fenix ARB-L21 Series battery.

Headband Assembly

Note: the headband is factory assembled by default. 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 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.
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 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 battery needs replacing — replace battery (ensure battery is inserted according to the manufacturer's specifications). B) The contact point or contact of the battery or headlamp is dirty — clean the contact points with a cotton swab soaked in rubbing alcohol. If the above methods don't work, please contact the distributor.

Battery Replacement

Unscrew the cap to insert the battery in accordance with the polarity marks, then screw the cap back on.

Charging

Uncover the cap and plug the USB Type-C side of the charging cable into the charging port of the lamp.
The indicator will display red while charging and will turn green when fully charged.
The normal charging time of the included Fenix ARB-L21-5000 21700 rechargeable Li-ion battery is about 4 hours with a 5V/2A adapter.
When charging is complete, replace the anti-dust cap to ensure waterproof and dustproof ability.
Recharge a stored headlamp every four months to maintain optimal Li-ion battery performance.
When charging, the headlamp can be normally used, but charging time will be prolonged.

Battery Level Indication

With the lamp switched off, single click either of the switches to check the battery status; the indicator will last for 3 seconds.

Green light on: saturated 100% - 85%
Green light flashes: sufficient 85% - 50%
Red light on: poor 50% - 25%
Red light flashes: critical 25% - 1%

Note: this only works with Fenix ARB-L21 Series battery.

Technical Parameters — General Mode (Spotlight)

Turbo: Output 1600 lumens (16 W), Runtime 2 hours* (in water) / 6 hours* (in air), Distance 290 meters, Intensity 20849 candela
High: Output 1000 lumens (10 W), Runtime 4 hours (in water) / 7 hours (in air), Distance 228 meters, Intensity 13028 candela
Med: Output 400 lumens (4 W), Runtime 8 hours, Distance 140 meters, Intensity 4888 candela
Low: Output 150 lumens (1.5 W), Runtime 24 hours, Distance 83 meters, Intensity 1732 candela
Eco: Output 50 lumens (0.5 W), Runtime 56 hours, Distance 59 meters, Intensity 879 candela

Technical Parameters — Functional Mode (Floodlight / Red Light)

High (Floodlight): Output 400 lumens (4 W), Runtime 8 hours, Distance 50 meters, Intensity 605 candela
Med (Floodlight): Output 150 lumens (1.5 W), Runtime 24 hours, Distance 30 meters, Intensity 220 candela
Low (Floodlight): Output 5 lumens (0.1 W), Runtime 400 hours, Distance 8 meters, Intensity 16 candela
Red (Red Light): Output 5 lumens (0.1 W), Runtime 400 hours, Distance 6 meters, Intensity 11 candela
SOS (Red Light): Output 5 lumens (0.1 W), Runtime 800 hours, Distance 6 meters, Intensity 11 candela

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; the in-water/in-air runtime data are from laboratory testing in water and in air. Specifications are based on ANSI/PLATO FL1 standard testing using one Fenix ARB-L21-5000 Li-ion battery at 21±3°C — actual performance may vary by environment and the battery used.

Included

Fenix HP25R V2.0 Headlamp, Fenix ARB-L21-5000 Li-ion battery, USB Type-C charging cable, 4 x Helmet attachment hooks, 3 x Cable clips, Spare O-ring, User manual, Warranty card.

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