The Sofirn C8L is a powerful and versatile flashlight designed for home, everyday carry (EDC), or outdoor activities such as camping, hiking, fishing, or hunting. It features a super bright CREE XHP50D-HI LED, delivering an impressive maximum output of 3100 lumens. The flashlight is operated using a dual-switch system, comprising a tactical tail switch and a side switch, offering flexible control over its various modes. For power, it utilizes one 21700 Li-ion battery and includes a convenient USB-C port for recharging.
Technical Specifications:
- LED: 1 X CREE XHP50D-HI LED
- Working Voltage: 3.0V - 4.2V
- Battery Options: One 21700 Li-ion battery or one 18650 Li-ion battery (with adapter sleeve). Unprotected 21700 batteries are supported, and both unprotected and protected button-top 18650 batteries are supported.
- Dimensions: 156mm (length) x 46.5mm (head diameter)
- Weight: 151g (without battery)
- Body Material: Aerospace grade 6061 aluminum alloy, CNC manufactured with a hard-anodized anti-abrasive finish for a solid build, anti-crash geometry, and enhanced heat exchange.
- Lens: Toughened mineral glass lens
- Waterproof Rating: IPX8 (up to 2 meters under water, not for diving)
- Charging: USB Type-C Charging (5V 2.5A max input)
- Impact Resistance: 1 meter / 3.28 feet
- Beam Angle: 26 degrees for throw, 82 degrees for flood
- Advanced Temperature Regulation (ATR): Automatically adjusts brightness to prevent overheating when the driver temperature reaches 50°C (122°F).
ANSI/NEMA FL1 Chart (using one 4800mAh 21700 Li-ion battery):
| Mode |
Luminous Flux |
Runtime |
Distance |
Intensity |
| Eco |
8 Lm |
220h |
27 m |
182 cd |
| Low |
100 Lm |
26h |
98 m |
2308 cd |
| Medium |
500 Lm |
6h58min |
216 m |
11675 cd |
| High |
1300 Lm |
2h28min |
354 m |
31275 cd |
| Turbo |
3100 Lm |
1h45min |
531 m |
70500 cd |
| Strobe |
3100 Lm |
- |
- |
- |
| SOS |
500 Lm |
- |
- |
- |
| Beacon |
3100 Lm |
- |
- |
- |
Note: Parameters are based on international flashlight testing standards. Results may vary with different batteries or environmental conditions. Operation temperature is 0°C - 40°C.
Usage Features:
The C8L offers two distinct operation groups, allowing users to customize their experience.
Power Indicator:
The LED indicator in the side switch displays the power status for 5 seconds after turning the C8L on:
- Green: Remaining battery power is good.
- Red: Remaining battery power is poor (less than 30%).
- Flashing Red: Critical power, requiring immediate battery replacement or recharge.
Recharging:
The flashlight features a USB-C port for convenient recharging. Connect it to the included USB-A to USB-C cable and use a 5V 2.5A (max) USB power adapter (not included). During charging, the LED power indicator flashes red. Once fully charged, the indicator turns green. A full charge for a 21700 4000mAh battery takes approximately three hours. While charging, the flashlight automatically turns off, but Eco mode can be activated with a single click.
Battery Installation:
Unscrew the tailcap to insert one 21700 battery or an 18650 battery (with an adapter sleeve) with the anode side (+) facing the head. Then, screw the tailcap back on.
Operation Instructions (Group 1):
- Tail Switch:
- Single press to turn the flashlight on or off.
- While OFF, double-click to activate Turbo.
- Side Switch (while ON):
- Single-click to cycle through Eco-Low-Medium-High.
- Double-click to activate Turbo.
- Triple-click to activate Strobe.
- On Strobe setting, double-click to cycle through Strobe-SOS-Beacon.
- Side Switch (while OFF):
- Hold the side switch and click the tail switch simultaneously to activate Eco.
Operation Instructions (Group 2):
- Side Switch (while ON):
- Single-click to cycle through Eco-Low-Medium-High.
- Double-click to activate Strobe.
- Tail Switch (while OFF):
- Double-click to activate Strobe.
Switching Between Groups:
Press and hold the side switch for 3 seconds to toggle between Group 1 and Group 2.
- LED flashes twice, turning on Eco, to indicate Group 1 setting.
- LED flashes twice, turning on Turbo, to indicate Group 2 setting.
Safety Instructions:
- Avoid pointing the flashlight directly at people, animals, or moving vehicles, as it can cause retinal damage.
- Keep out of reach of children. Strobe mode may cause seizures in individuals with photosensitive epilepsy.
- While charging, only Eco mode is available. Using the flashlight in other modes while charging is not recommended.
- Operating in high-powered modes for extended periods will cause the flashlight to heat up, which is normal.
- Ensure correct battery installation: the negative end of the battery should be visible at the tube's end before screwing the tailcap back on.
- To prevent accidental activation during transport or standby battery drain, unscrew the tailcap by half a turn.
- Avoid hitting or dropping the flashlight.
Maintenance Features:
- Disassembly: Disassembling the sealed head can damage the flashlight and voids the warranty.
- Batteries: Sofirn, Ltd. recommends using high-quality brand batteries. Damage from battery leakage voids the warranty.
- Storage: Remove the battery if the flashlight will not be used for an extended period. To prevent accidental activation during storage or transportation, unscrew the head by half a turn or remove the battery.
- Threads: Every 6 months, threads should be wiped with a clean cloth followed by a thin layer of silicone grease.
- Waterproofness: To maintain proper waterproofness, replace worn-out O-rings with approved spares (two pieces are included with the initial order).
- Troubleshooting: Regularly clean battery contacts, as dirty contacts can impair performance. If issues like flickering, intermittent shine, or failure to turn on occur:
- Reason A (Battery needs replacement): Battery voltage is below 2.8V. Solution: Replace with an approved, fully charged battery.
- Reason B (Dirty contacts): Threads, PCB board contact, or other contacts are dirty. Solution: Clean contact points with a cotton swab soaked in rubbing alcohol.
- If these methods do not resolve the issue, refer to the warranty policy before contacting your authorized distributor.
Warranty and Support:
For any questions or defective products, contact Sofirn Limited for replacement within the warranty period.
- Tel: +86-755-23440047
- Fax: +86-755-23440141
- Web: www.sofirnlight.com
- Email: us@sofirnlight.com, eu@sofirnlight.com
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