Fenix E35R Reference Manual and SpecificationsUpdated 3 hours ago

This is the Fenix Store reference guide for the Fenix E35R high-performance EDC flashlight — condensed from the manufacturer's official manual for easier reading. A downloadable PDF version is also available on the product page.

Overview

• 3100 lumens maximum output and 260 meters maximum beam distance
• Uses a Luminus SST70 LED with a lifespan of 50,000 hours
• Includes an ARB-L21-5000 V2.0 rechargeable battery
• Instant strobe and output selection via the mechanical side switch
• Type-C charging port with fast charging
• Magnetic tail for hands-free use; body clip included for carry
• Boot-up battery level indication and low-voltage warning
• Reverse polarity protection
• Made of A6061-T6 aluminum with HAIII hard-anodized anti-abrasive finish
• Size: 4.72'' x 1.04'' x 0.98'' / 120 x 26.5 x 24.8mm
• Weight: 5.22 oz / 148 g (including battery)

Technical Parameters (ANSI/PLATO FL1)

Impact Resistance: 1 meter  |  Waterproof Rating: IP68

*Turbo runtime includes reduced-output time from thermal/protection step-down. Specs measured by Fenix using the ARB-L21-5000 V2.0 battery at 21±3°C / 50–80% humidity; real-world performance varies.

Operating Instructions

On/Off: Press the switch for 0.5 seconds to turn the light on/off.

Output Selection: With the light on, single-click the switch to cycle Eco → Low → Med → High → Turbo.

Strobe: With the light on, press and hold the switch for 1.2 seconds to enter strobe.

Intelligent Memory Circuit: The light remembers the last-used output level, excluding Turbo, High, and Strobe. If turned off on Turbo or High, it will restart on Med.

Lock/Unlock: With the light off and unlocked, double-click within 0.5 seconds to lock (it blinks twice on Eco to confirm). Double-click again within 0.5 seconds to unlock (it activates on Eco).

Battery & Charging

Uses a Fenix ARB-L21 series 21700 battery (3.6V, included). To replace: unscrew the light head, insert the battery anode side (+) toward the head, and screw the head back on.

To charge: connect the included USB Type-C cable to the light and a USB power source (5V/2A adapter or higher recommended). The indicator glows red while charging and turns green when full. Close the anti-dust cover after charging to preserve the waterproof seal. Full charge from empty takes about 3 hours. The light can be used while charging, except on Turbo, High, or Strobe.

Battery Level Indication

With the light off, single-click the side switch to check battery status (indicator lights for 3 seconds); it also shows briefly on every power-on.

• Green, on: 100–85%
• Green, flashing: 85–50%
• Red, on: 50–25%
• Red, flashing: 25–1% (recharge soon)

Protection Features

Intelligent Overheat Protection: On High or Turbo for extended periods, the light will automatically step down output if it reaches 60°C, and allow reselecting High/Turbo once it cools below that.

Low-Voltage Warning: As the battery depletes, the light automatically steps down toward Eco mode; in Eco, the indicator blinks red as a reminder to recharge or replace the battery.

Care & Maintenance

• Do not disassemble the sealed head — this voids the warranty.
• Use only a high-quality protected battery.
• Remove the battery for storage if the light won't be used for an extended period.
• Lock the light or remove the battery during storage/transport to prevent accidental activation.
• Replace the O-ring with an approved spare if it shows wear, to maintain the waterproof seal.
• Clean battery contacts periodically with a rubbing-alcohol-soaked cotton swab if the light flickers or won't turn on.

What's Included

Fenix E35R flashlight, ARB-L21-5000 V2.0 battery, USB Type-C charging cable, lanyard, spare O-ring, product leaflet, and warranty card.

Have a question this guide doesn't answer? Contact Fenix Store support and we're happy to help.