Fenix E40R Rechargeable EDC Flashlight - 5000 Lumens

Performance Highlights

• Maximum output: 5000 lumens (Turbo) reaching 242 m (794 ft).
• Output: Eco, Low, Med, and High in General mode, plus momentary Turbo and Strobe.
• Max runtime: 89.5 hours on Eco.
• LEDs: four 6500K cool white LEDs with a combined spot and flood beam.
• Waterproofing: IP68 rated; impact resistant to 1 meter.

Full mode-by-mode output, runtime, distance, and intensity figures are in the user manual section below.

Key Features

• Three-position toggle switch: Lockout, General, and momentary Turbo.
• Side electronic switch for output selection; press and hold for Strobe.
• Lockout prevents accidental activation in a pocket or bag.
• Intelligent memory recalls your last General-mode output.
• Magnetic tail cap and body clip for hands-free use and easy carry.
• Ring-shaped battery level indicator with low-battery warning.

Battery & Charging

• Included: Fenix ARB-L21-5500 rechargeable 21700 battery (replaceable).
• Charging: built-in USB Type-C port; about 1.5 hours from empty to full with a 9V fast-charging adapter.
• Compatible: protected 21700 Li-ion batteries (Fenix ARB-L21 series recommended).

Size & Weight

• Dimensions: 5.43" x 1.38" x 1.04" (138 x 35 x 26.4 mm).
• Weight: 7.76 oz / 220 g with battery; 5.15 oz / 146 g without.
• Body: A6061-T6 aluminum.

Q: What is the Fenix E40R designed for, and what are its key features?

A: The E40R is a high-performance EDC flashlight suited to everyday carry, maintenance work, and outdoor adventures. Key features: 5000 lumens maximum output and a 242 meter beam; four high-performance white LEDs; a three-position toggle switch plus a side switch; Turbo on demand (push the toggle forward, release to return to standard mode); Strobe, USB-C fast charging, and a battery level indicator; and a body clip with a magnetic tail cap.

Q: What LEDs does the E40R use? Can the LEDs be replaced?

A: It uses four Jingneng TN-C7-P-P2-D LEDs. Fenix does not offer an LED replacement service, and replacing the LEDs yourself is not recommended, as it may affect performance or damage the light.

Q: What is the color temperature of the E40R?

A: Cool white light, 6500K.

Q: What is the working voltage of the E40R?

A: The operating voltage is 2.8-4.2V.

Q: Is the E40R rechargeable? How long does charging take?

A: Yes. Connect the flashlight's built-in USB Type-C port to a power source with a USB Type-C cable. With a fast-charging adapter (9V, 20W or higher), the battery can be fully charged in about 1.5 hours.

Q: Can the E40R's Turbo mode stay on continuously?

A: No. Turbo only stays on while the toggle switch is held in the Turbo position; when you release it, the switch springs back to standard (General) mode.

Q: Why does the E40R step down to a lower mode after a while, and why can't I select the higher modes?

A: There are two reasons. Intelligent overheat protection: the light builds up heat at high output, and at 60°C (140°F) or above it automatically steps down to reduce the temperature. Low-voltage warning: when the battery voltage drops below the preset level, the light downshifts step by step until it reaches the lowest output.

Q: Why does my E40R flicker?

A: Flickering, intermittent light, or failure to turn on usually has one of two causes. Low battery: recharge or replace the battery. Dirty contacts: clean the contact points on the battery and flashlight with a cotton swab dipped in rubbing alcohol. If that doesn't fix it, contact Fenix Store support through live chat (the chat button on any page of fenix-store.com) or at support@fenix-store.com.

Q: What battery does the E40R use, and is it replaceable?

A: It comes with one Fenix ARB-L21-5500 rechargeable 21700 Li-ion battery, which is replaceable. Use only protected 21700 rechargeable Li-ion batteries; unprotected cells are not recommended.

Q: What do I do if my E40R needs repair?

A: Fenix provides a 15-day replacement for documented manufacturing defects, 5 years of free repair for problems from normal use (1 year for the rechargeable battery and other accessories), and a lifetime limited warranty with parts charged after 5 years. Keep your proof of purchase and contact Fenix Store support through live chat or at support@fenix-store.com. See our Warranty and Repair page (https://www.fenix-store.com/pages/warranty-info) for details.

The Fenix E40R is a high-output rechargeable EDC 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.

Overview

The E40R delivers up to 5000 lumens maximum output and 242 meters maximum beam distance from four high-performance 6500K LEDs rated for a 50,000-hour lifespan each, powered by an included ARB-L21-5500 21700 battery with fast USB Type-C charging.

• 5000 lumens maximum output, 242 meters maximum beam distance.
• Four high-performance 6500K LEDs, 50,000-hour lifespan each.
• Included ARB-L21-5500 battery provides a max runtime of 89.5 hours in Eco mode.
• Combined spotlight/floodlight output for wide coverage.
• Toggle switch manages lockout, activation, and Turbo; electronic switch handles output selection and Strobe.
• Lockout function prevents accidental activation.
• USB Type-C fast charging — 1.5 hours from depleted to full.
• Magnetic tail and included body clip.
• Ring-shaped battery indicator with low-battery warning.
• Reverse polarity protection.
• Waterproofed USB Type-C port with silicone dust plug.
• Made of high-strength, oxidation-resistant A6061-T6 aluminum. IP68-rated.
• Size: 5.43" x 1.38" x 1.04" / 138 x 35 x 26.4 mm.
• Weight: 5.15 oz / 146 g (excluding battery); 7.76 oz / 220 g (including battery).

Operating Instructions

On/Off: Turn the toggle switch from Lockout to General mode to turn on; back to Lockout to turn off. In General mode, press and hold the electronic switch for 0.5 seconds to turn on/off.

Mode Switching: Turn the toggle switch to cycle bidirectionally through Lockout ↔ General ↔ Turbo.

General Mode: Single click the electronic switch to cycle Eco → Low → Med → High; press and hold 1.2 seconds to enter Strobe.

Turbo Mode: Keep pushing the toggle switch to enter Turbo; release to return to General mode.

Intelligent Memory Circuit: Memorizes the last General mode output; activates in Med if previously switched off in High.

Battery Replacement: Unscrew the tail cap and insert the battery with the anode side (+) towards the light head, then screw the tail cap back on.

Charging

Open the anti-dust plug and connect the USB Type-C end of the charging cable. The indicator displays red while charging and turns green when full; close the anti-dust plug after. The flashlight can be operated while charging. Normal charging time is about 1.5 hours with a 9V/3A adapter. Recharge a stored flashlight every four months.

Battery Level Indication

Green on: saturated 100–85%. Green flashes: sufficient 85–50%. Red on: poor 50–25%. Red flashes: critical 25–1%. Works only with a Fenix ARB-L21 Series battery.

Intelligent Overheat Protection

At 60°C/140°F or above, the flashlight automatically steps down output to reduce temperature, gradually recalling the preset output level as it cools.

Low-Voltage Warning

Below the preset voltage level, the flashlight downshifts until Eco is reached and blinks red to prompt recharging. Below 2.8V, over-discharge protection automatically turns the light off to protect the battery.

Technical Parameters (ANSI/PLATO FL1, Fenix ARB-L21-5500 battery)

• Turbo: Output 5000 lumens, Distance 242 m, Intensity 14,641 cd, Impact Resistance 1 m, Submersible IP68 (short-burst mode; runtime not rated for sustained use)
• High: Output 1500 lumens, Runtime 3h 40m, Distance 130 m, Intensity 4225 cd, Impact Resistance 1 m, Submersible IP68
• Med: Output 350 lumens, Runtime 9h 40m, Distance 63 m, Intensity 992 cd, Impact Resistance 1 m, Submersible IP68
• Low: Output 150 lumens, Runtime 26h 30m, Distance 41 m, Intensity 420 cd, Impact Resistance 1 m, Submersible IP68
• Eco: Output 30 lumens, Runtime 89h 30m, Distance 18 m, Intensity 81 cd, Impact Resistance 1 m, Submersible IP68
• Strobe: Output 2500 lumens, Impact Resistance 1 m, Submersible IP68

Specifications are Fenix lab testing results using one ARB-L21-5500 battery at 21±3°C and 50–80% humidity. Turbo mode delivers an ultra-high brightness burst for a short duration and cannot be sustained; its runtime is not listed.

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 to avoid damage from electrolyte leakage.
• Lock the flashlight or take out the battery to prevent accidental activation during storage or transportation.
• Long-term use can result in O-ring wear; replace with an approved spare to maintain a proper water seal.
• Periodic cleaning of the battery contacts improves performance; clean with a cotton swab soaked in rubbing alcohol if flickering occurs, or contact your authorized distributor.

What's Included

Fenix E40R flashlight, ARB-L21-5500 battery, lanyard, spare O-ring, USB Type-C charging cable, user manual, warranty card.