Fenix PD26R ACE Reference Manual and SpecificationsUpdated 2 hours ago

The Fenix PD26R ACE is a multi-mode compact flashlight. This summary is drawn from the manufacturer's official user manual — see the downloadable PDF reference manual on the product page for complete details.

Warning

Do not place this flashlight within the reach of children.
Do not shine this flashlight directly into the eyes of anyone.
Do not place the light head near flammable objects — high temperatures can cause objects to overheat and become flammable/ignite.
Do not use this flashlight in inappropriate ways such as holding the unit in your mouth; doing so could cause serious personal injury or death if the flashlight or internal battery fails.
This flashlight will accumulate a significant amount of heat while operating, resulting in a high temperature of the flashlight shell. Pay close attention to avoid burns.
Unscrew the light tail a few turns or remove the battery to prevent accidental activation when the flashlight is placed in a closed and flammable environment such as pockets and backpacks.
The LED of this flashlight is not replaceable; the whole flashlight will need to be replaced when the LED reaches the end of its lifespan.

Overview

Innovative SET mode and customizable Strobe mode to match lighting needs on different scenarios
Uses one Luminus SFT25R LED with a lifespan of 50,000 hours
1300 lumens maximum output and 354 meters maximum beam distance
Tactical tail switch for instant activation; neck-mounted switch for output selection
Powered by a 1600mAh 18350 rechargeable battery
Hidden USB Type-C charging port for convenient charging
Boot-up battery level indication and low-voltage warning
Digitally regulated circuit for maintaining a stable output
Reverse polarity protection, to protect from improper battery insertion
Anti-roll and anti-slip body design
Included body clip for versatile attachment
Made of durable 6061 aluminum alloy with a premium type HAIII hard-anodized anti-abrasive finish
Toughened ultra-clear glass lens with an anti-reflective coating
Size: 4.17'' x 1.05'' x 0.97'' / 106 x 26.6 x 24.6 mm. Weight: 3.61 oz / 102.3 g (including battery)

Operating Instructions

The round tail switch is the tactical switch for instant activation. The neck-mounted switch is for output selection. The SET switch is for option selection.

On/Off: tap the tactical tail switch to turn on the light silently; release it and the light will go out. Fully press the tactical tail switch to constantly turn on the light; fully press it again to turn off the light.

Output Selection: with the light turned on, single click the neck-mounted switch to cycle through Eco → Low → Med → High → Turbo (5 outputs by default).

SET Mode Adjustment

The SET mode features three preset lighting options, which can be selected based on different lighting demands. Unscrew the light neck to reveal the hidden SET switch. With the light turned on, single click the SET switch to cycle through Option 1 (1 output) → Option 2 (3 outputs) → Option 3 (5 outputs) — Option 3 is selected by default when users first turn on the flashlight. When a lighting option is selected, its indicator displays green for 3 seconds to confirm the selection. After the option selection is completed, single click the neck-mounted switch to select the needed output.

Option 1: Turbo only, plus Strobe (on/off)
Option 2: Low, High, and Turbo
Option 3 (default): Eco, Low, Med, High, Turbo, and SOS

Note: users can turn the Strobe mode on or off separately — it is turned on in all options by default. The output amounts for each lighting option do not include Strobe and SOS.

Enter/Exit SOS and Strobe Modes

With the light turned on and Option 1/2 selected, press and hold the neck-mounted switch for over 0.5 seconds to enter Strobe mode; press and hold it again for over 0.5 seconds to exit Strobe mode and recall the previously used lighting option and brightness level. With the light turned on and Option 3 selected, press and hold the neck-mounted switch for over 0.5 seconds to enter Strobe mode, then single click it to switch to SOS mode; press and hold it again for 0.5 seconds to recall the previously used lighting option and brightness level.

Strobe Mode Customization: with the light turned on, press and hold the SET switch for 1.2 seconds to turn on/off the Strobe mode in all options — the flashlight will blink twice to confirm the selection.

Note: only Option 3 features the SOS mode. After turning off the Strobe mode, press and hold the neck-mounted switch for over 0.5 seconds to enter the SOS mode directly.

Intelligent Memory Circuit

The flashlight automatically memorizes the last selected lighting option and output, excluding Strobe and SOS.

Battery Specifications

Fenix ARB-L18 Series (18350, 3.6V): Recommended
Rechargeable Battery, Li-ion (18350, 3.6V): Caution
Rechargeable Battery, Li-ion (16340, 3.6V): Banned
Rechargeable Battery, LiFePO4 (18350, 3.2V): Banned

18350 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 tail and insert the battery with the anode side (+) towards the light head, then screw the light tail back on.

Charging

Unscrew the light neck to reveal the USB Type-C charging port, then connect the USB Type-C end of the charging cable to the flashlight. The battery level indicator will display red while charging and will turn green when fully charged. Once charging is completed, be sure to unplug the charging cable and screw the light neck back to ensure normal use. The normal charging time of the included Fenix ARB-L18-1600 battery is approximately 2 hours from depleted to fully charged — recharge a stored flashlight every four months to maintain optimum performance of the battery. The flashlight can be turned on while charging: press and hold the neck-mounted switch for 0.5 seconds to turn on/off the flashlight (the tail switch will not respond to any operation during charging). After turning off the flashlight with the neck-mounted switch, if the tail switch is in the fully pressed state while unplugging the charging cable, the flashlight will automatically light up and recall the previously used brightness level.

Battery Level Indication: each time the flashlight is turned on, the battery level indicator in the neck-mounted switch will show the current battery level 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%.

Technical Parameters (ANSI/PLATO FL1)

Turbo: Output 1300 lumens*, Runtime 1 hour 2 minutes, Distance 354 meters, Intensity 31404 candela
High: Output 350 lumens, Runtime 2 hours 13 minutes, Distance 190 meters, Intensity 9025 candela
Med: Output 100 lumens, Runtime 8 hours 35 minutes, Distance 98 meters, Intensity 2443 candela
Low: Output 30 lumens, Runtime 27 hours 7 minutes, Distance 54 meters, Intensity 748 candela
Eco: Output 1 lumen, Runtime 556 hours, Distance 8 meters, Intensity 19 candela
Strobe: Output 1300 lumens
SOS: Output 30 lumens

Impact Resistance: 1 meter | Submersible: IP68

Note: according to the ANSI/PLATO FL1 standard, the above specifications are the results produced by Fenix using one Fenix ARB-L18-1600 battery at 21±3°C / 50–80% humidity; real-world performance varies. *The Turbo output is measured in total runtime including output at reduced levels due to temperature or the protection mechanism in the design.

Intelligent Overheat Protection

The flashlight will accumulate a lot of heat when used at high output levels for extended periods. When the flashlight reaches a relatively high temperature, it will automatically step down a few lumens to reduce the temperature. When the temperature drops to a safe level, the flashlight will gradually recall the preset output level.

Low-Voltage Warning

When the voltage level drops below 3.0V, the flashlight is programmed to downshift to a lower brightness level until Eco output is reached. When this happens in Eco output, the battery level indicator blinks red to remind users to replace or recharge the battery in a timely manner. To ensure normal use, the flashlight will not turn off automatically and will work until the battery runs out or the battery protection plate is triggered to stop discharging. This only works with a Fenix ARB-L18 Series 18350 rechargeable battery.

Usage and Maintenance

Disassembling the sealed head can cause damage to the flashlight and will void the warranty.
Fenix recommends using an excellent quality battery.
If the flashlight will not be used for an extended period, remove the battery, or the flashlight could be damaged by electrolyte leakage.
Unscrew the light tail a few turns 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 O-ring with an approved spare.
Periodic cleaning of the battery contacts improves the flashlight's performance, as dirty contacts may cause flickering, intermittent shining, or failure to illuminate: check for a poor battery level (recharge or replace, ensuring it's inserted according to the manufacturer's specifications) or dirty battery/flashlight contacts (clean with a cotton swab soaked in rubbing alcohol).
If the above methods don't work, please contact your authorized distributor.

What's Included

Fenix PD26R ACE flashlight, ARB-L18-1600 battery, USB Type-C charging cable, holster, lanyard, 2x spare O-rings, user manual, and warranty card.

Was this article helpful?

Yes