1. Fampidirana
This manual provides comprehensive instructions for the safe and effective operation, maintenance, and troubleshooting of your Sofirn HS41 4000 Lumen Rechargeable LED Headlamp. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

The Sofirn HS41 can be used as a headlamp with the included headband or as a versatile right-angle flashlight, featuring a magnetic base for hands-free operation.
2. Vokatra mihoatraview
Endri-javatra fototra
- Avo vokatra: Equipped with 4*SST20 LEDs, delivering up to 4000 lumens with a beam distance of 325 meters.
- Fametrahana USB-C: Built-in Type-C port for convenient and fast charging.
- Fampandehanana maharitra: Up to 29.5 days of usage in Moonlight mode on a single charge.
- Fomba jiro maro: 9 modes including Moonlight, Eco, Low, Medium, High, Turbo, Strobe, SOS, and Beacon.
- Famolavolana maharitra: IPX8 waterproof rating and impact resistance up to 1 meter.
- Fampiasana maro: 90-degree L-shape design allows use as a headlamp or right-angle flashlight with a powerful magnetic tailcap.
- Toetra fiarovana: Advanced Temperature Regulation (ATR) and Low Voltage Fiarovana.

This image highlights the main features of the HS41, such as its multiple lighting modes, extended battery life, convenient USB-C charging, and robust IP68 waterproof design.
Inona no ao anaty boaty
- Sofirn HS41 Headlamp
- 1x Rechargeable Lithium Polymer Battery
- 1x Sturdy Head Band
- 1x Type-C Charging Cable
- 1x User Manual
3. Torolàlana momba ny fiarovana
- Do not shine the light directly into eyes. The high lumen output can cause temporary vision impairment.
- Arovy amin'ny ankizy.
- Use only the specified battery type. Incorrect battery usage can lead to damage or safety hazards.
- Aza disassemble ny headlamp, as this may void the warranty and cause damage.
- Aza hadino ny mampiseho ny lohaamp amin'ny hafanana tafahoatra na ny tara-masoandro mivantana mandritra ny fotoana maharitra.
- Ensure the USB-C port cover is securely closed when not charging to maintain water resistance.
4. Fametrahana
Fametrahana bateria
- Unscrew the tail cap of the headlamp.
- Insert the included 18650 Lithium Polymer battery with the positive (+) end facing towards the head of the light.
- Avereno mafy tsara ny sarony mba hahazoana antoka fa mifandray tsara amin'ny rano sy tsy tantera-drano.
fa mamaly ny
The HS41 features a built-in USB-C charging port.
- Tadiavo eo amin'ny ilan'ny loha ny seranana famandrihana USB-Camp and open its protective cover.
- Connect the provided Type-C charging cable to the headlamp and to a USB power source (e.g., wall adapter, power bank, computer).
- Ny jiro famantarana eo amin'ny lohanyamp will show the charging status:
- mena: Mitohy ny fiampangana.
- Maitso: Voaloa tanteraka.
- Charging typically takes approximately 2.5 hours for a full charge.
- Once charging is complete, disconnect the cable and securely close the USB-C port cover to maintain water resistance.

Ny headlamp features a built-in USB-C port for convenient and fast charging. The indicator light changes color to show charging status.
5. Torolàlana miasa
The HS41 is operated via a single side switch.
Fampandehanana fototra
- Ampiheno/ vonoina: Single click the switch to turn the light on or off.
- Change Brightness (Ramping): When the light is on, press and hold the switch to cycle through brightness levels (Moonlight, Eco, Low, Medium, High, Turbo). Release the switch at your desired brightness.
- Fomba fitadidiana: Ny headlamp will remember the last used brightness level (except for special modes like Strobe, SOS, Beacon).
Fomba fidirana haingana
- hazavan'ny volana: From OFF, press and hold the switch for 1 second to activate Moonlight mode.
- Fomba avo: From OFF, double-click the switch to directly activate High mode.
- Strobe fomba: From OFF, triple-click the switch to activate Strobe mode.

Ny headlamp's single button allows for quick access to frequently used modes: press and hold for Moonlight, double-click for High, and triple-click for Strobe.
Special Modes (Strobe, SOS, Beacon)
- From ON, triple-click the switch to enter Strobe mode.
- While in Strobe mode, double-click to cycle through SOS and Beacon modes.
- Single click to turn off or return to the previous brightness level.

The HS41 delivers a powerful 4000 lumens, providing extensive illumination for outdoor activities. The image shows the light beam and icons representing modes like Moonlight, Eco, Low, Medium, High, Turbo, Strobe, Beacon, and SOS.
Function Lockout
To prevent accidental activation, the HS41 features a lockout mode.
- Ampidiro ny fanakatonana: From OFF, perform four quick clicks of the switch. The LED will blink twice to confirm lockout mode is active.
- Atsaharo ny fanakatonana: Perform four quick clicks of the switch. The light will turn on to the last used mode.

Ny headlamp features a lockout mode to prevent accidental activation. It is engaged by four quick clicks when the light is off, indicated by two blinks.
Tondro hery
The power indicator displays the battery level for 5 seconds every time the light is turned on.
- Maitso: Remaining battery power is good (70% - 100%).
- mena: Remaining battery power is poor (30% - 69%).
- Mena mitselatra: Critical power (less than 30%). Recharge the battery as soon as possible.

The integrated power indicator provides real-time battery status: green (70-100%), red (30-69%), and flashing red (below 30%), prompting timely recharging.
Ambany Voltage Fampitandremana
Rehefa ny bateria voltage drops below 3V, the indicator will flash red, and the headlamp will vibrate twice with a 1-minute interval between each vibration. This signals that the battery needs to be recharged immediately.

Rehefa ny bateria voltage latsaka ambany 3V, ny lohanyamp's indicator will flash red, and the device will vibrate twice with a one-minute interval, signaling a low voltage condition.
6. Fikojakojana
FANADIOVANA
- Fafao ny lohaamp misy malefaka, damp lamba hanalana loto sy potipoti-javatra.
- Do not use abrasive cleaners or solvents, as they may damage the finish or internal components.
- Clean the threads of the tail cap and O-rings periodically. Apply a thin layer of silicone grease to the O-rings to maintain water resistance.
Fikarakarana bateria
- Recharge the battery regularly, especially if the headlamp tsy hampiasaina mandritra ny fotoana maharitra.
- Tehirizo ao amin'ny toerana mangatsiatsiaka sy maina ny bateria.
- If storing for a long time, remove the battery from the headlamp to prevent parasitic drain.
fitahirizana
- Tehirizo ny lohaamp in a dry environment, away from direct sunlight and extreme temperatures.
- Ataovy azo antoka ny lohan-dohaamp is in lockout mode or the battery is removed during storage to prevent accidental activation.
7. Famahana olana
| OLANA | Antony mety hitranga | vahaolana |
|---|---|---|
| Tsy mirehitra ny jiro | Tapaka ny bateria Nampidirina tsy araka ny tokony ho izy ny bateria Tail cap loose Headlamp in lockout mode | Recharge bateria Jereo ny polarity bateria Henjana ny satroka rambony Deactivate lockout mode (4 clicks) |
| Mitsilopilopy na manjavozavo ny hazavana | bateria kely Poor contact between battery and terminals Dirty threads/contacts | Recharge bateria Ensure battery is fully inserted Clean threads and contacts with a cotton swab |
| Tsy mandeha ny fiampangana | Diso ny cable chargeur USB power source insufficient Maloto ny seranana famandrihana | Manandrama tariby USB-C hafa Use a reliable USB power adapter Clean the USB-C port gently |
| Headlamp gets hot quickly | Operating in Turbo/High mode for extended periods ATR (Advanced Temperature Regulation) is active | This is normal. The ATR system will automatically reduce brightness to prevent overheating. Reduce brightness manually if desired. |
8. Famaritana
| endri-javatra | famaritana |
|---|---|
| MODELY | HS41 |
| Loharanon-jiro | 4*SST20 LEDs |
| Famirapiratana ambony indrindra | 4000 Lumens |
| Beam Distance | 325 metatra |
| Loharanon-kery | 1x Rechargeable Lithium Polymer Battery (included) |
| Charging Port | USB Type-C |
| KEVITRA | Aluminum Alloy |
| Water Resistance | IPX8 (submersible up to 2 meters for 30 minutes) |
| Impact Resistance | 1 metatra |
| lafiny | 1"D x 1"W x 1"H (approx. 30.1mm x 29mm x 115mm) |
| lanja | 0.71 Pounds (approx. 11.4 ounces / 79g without battery) |
| Endri-javatra manokana | Adjustable Light Modes, Adjustable Strap, Magnetic Base, Low Voltage Warning, Advanced Temperature Regulation |
9. Warranty sy fanohanana
For warranty information or technical support, please contact the seller, 77 Outdoor Shop, or the manufacturer, Sofirn, directly through their official channels. Please retain your proof of purchase for any warranty claims.





