Fenix C7 Pro Reference Manual and SpecificationsUpdated an hour ago
This is the Fenix Store reference guide for the Fenix C7 Pro high-output, fast-charging work flashlight — condensed from the manufacturer's official manual for easier reading. A downloadable PDF version is also available on the product page.
Overview
- 4600 lumens maximum output and 339 meters maximum beam distance
- Utilizes four Luminus SST25 LEDs with a lifespan of 50,000 hours each
- Powered by an included ARB-L21-5000 V2.0 rechargeable battery
- USB Type-C port supports up to 20W fast charging — 1.5 hours from depleted to fully charged
- Magnetic base for hands-free use
- Constant current circuit for a stable output overnight
- Upgraded and reinforced housing for extraordinary durability and impact resistance
- Boot-up battery level indicator and low-voltage warning
- Reverse polarity protection against improper battery insertion
- Made of high-strength, oxidation-resistant 6061 aluminum with a premium type HAIII hard-anodized anti-abrasive finish
- Toughened ultra-clear glass lens with anti-reflective coating, up to 98% light transmittance
- Anti-roll, anti-slip body design; included body clip for versatile attachment
- Size: 5.93'' x 1.57'' x 1.12'' / 150.5 x 40 x 28.4mm
- Weight: 9.24 oz / 262 g (including battery)
Technical Parameters (ANSI/PLATO FL1)
| Turbo | High | Med | Low | Eco | Strobe | SOS | |
|---|---|---|---|---|---|---|---|
| Output | 4600 lumens | 2000 lumens | 600 lumens | 100 lumens | 30 lumens | 2500 lumens | 100 lumens |
| Runtime | 1 h 48 min* | 2 h 12 min | 5 h 56 min | 35 h 27 min | 85 h 30 min | — | — |
| Distance | 339 m | 220 m | 120 m | 50 m | 28 m | — | — |
| Intensity | 28,866 cd | 12,404 cd | 3,605 cd | 645 cd | 196 cd | — | — |
Impact Resistance: 1 meter | Waterproof Rating: IP68
*Turbo runtime includes reduced-output time from thermal/protection step-down. Specs measured by Fenix using one ARB-L21-5000 V2.0 battery at 21±3°C / 50–80% humidity; real-world performance varies.
Operating Instructions
On/Off: press and hold the side switch for 0.5 seconds to turn the flashlight on/off.
Mode Switching: press and hold the side switch for 1.2 seconds to switch to Flash mode. Single-click the side switch to select between Strobe and SOS.
Output Selection: in General mode, single-click the side switch to cycle Eco → Low → Med → High → Turbo.
Lock/Unlock: with the light off, double-click the side switch within 0.5 seconds to lock (blinks twice in Low output to confirm). Double-click again within 0.5 seconds to unlock (activates in Low output).
Intelligent Memory Circuit: the light remembers the last-used output level, but only for outputs of 1000 lumens or below (excluding Strobe and SOS). If turned off above 1000 lumens, it restarts at the last remembered level under that threshold.
Battery & Charging
Uses a Fenix ARB-L21 series 21700 battery (3.6V, included). To replace: unscrew the light tail, insert the battery anode side (+) toward the light head, and screw the tail back on. Do not use 16340 batteries or LiFePO4 (18650, 3.2V) batteries — both are banned for this light; other 21700 Li-ion batteries should be used with caution.
To charge: open the anti-dust plug on the tail to reveal the USB Type-C port and connect the charging cable. The indicator glows red while charging and turns green when full — be sure to unplug and close the anti-dust plug once done. Charging from empty takes about 1.5 hours with a 9V/3A adapter (20W fast charging supported; only use a certified adapter). The light can be used while charging.
Battery Level Indication
With the light off, single-click the side switch to check battery status (indicator lasts 3 seconds); it also shows briefly on every power-on.
- Green, on: saturated, 100–85%
- Green, flashing: sufficient, 85–50%
- Red, on: poor, 50–25%
- Red, flashing: critical, 25–1%
Protection Features
Intelligent Overheat Protection: at 60°C/140°F or above, the light automatically steps down output to cool down, and gradually restores the preset level once temperature drops.
Low-Voltage Warning: below 3.0V, the light downshifts to Eco. At Eco, the indicator blinks red rapidly and the light itself blinks for 20 seconds as a reminder; single-click the switch to stop the blinking and stay in Eco (usable for 30+ more minutes) until the battery needs recharging.
Care & Maintenance
- Do not disassemble the sealed head — this voids the warranty.
- Use only a high-quality battery.
- Remove the battery for storage if the light won't be used for an extended period.
- Unscrew the light tail 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 C7 Pro flashlight, ARB-L21-5000 V2.0 battery, lanyard, spare O-ring, USB Type-C charging cable, user manual, and warranty card.
Have a question this guide doesn't answer? Contact Fenix Store support and we're happy to help.