1. Introducció
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. Producte acabatview
Característiques clau
- Alt rendiment: Equipped with 4*SST20 LEDs, delivering up to 4000 lumens with a beam distance of 325 meters.
- Càrrega USB-C: Built-in Type-C port for convenient and fast charging.
- Temps d'execució estès: Up to 29.5 days of usage in Moonlight mode on a single charge.
- Múltiples modes d'il·luminació: 9 modes including Moonlight, Eco, Low, Medium, High, Turbo, Strobe, SOS, and Beacon.
- Disseny durador: IPX8 waterproof rating and impact resistance up to 1 meter.
- Ús versàtil: 90-degree L-shape design allows use as a headlamp or right-angle flashlight with a powerful magnetic tailcap.
- Característiques de seguretat: Advanced Temperature Regulation (ATR) and Low Voltage Protecció.

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.
Què hi ha a la caixa
- Sofirn HS41 Headlamp
- 1x Rechargeable Lithium Polymer Battery
- 1x Sturdy Head Band
- 1 cable de càrrega tipus C
- 1 x manual d'usuari
3. Instruccions de seguretat
- Do not shine the light directly into eyes. The high lumen output can cause temporary vision impairment.
- Mantenir fora de l'abast dels nens.
- Use only the specified battery type. Incorrect battery usage can lead to damage or safety hazards.
- No desmunteu el capçalamp, as this may void the warranty and cause damage.
- Eviteu exposar el capamp a temperatures extremes o a la llum solar directa durant períodes prolongats.
- Ensure the USB-C port cover is securely closed when not charging to maintain water resistance.
4. Configuració
Instal·lació de la 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.
- Torneu a enroscar la tapa de la cua fermament per garantir un contacte adequat i una resistència a l'aigua.
Carregant
The HS41 features a built-in USB-C charging port.
- Locate the USB-C charging port on the side of the headlamp 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).
- Llum indicador al capdavantamp will show the charging status:
- Vermell: Càrrega en curs.
- Verd: Totalment carregat.
- La càrrega completa sol trigar aproximadament 2.5 hores.
- Un cop finalitzada la càrrega, desconnecteu el cable i tanqueu bé la tapa del port USB-C per mantenir la resistència a l'aigua.

El capamp features a built-in USB-C port for convenient and fast charging. The indicator light changes color to show charging status.
5. Instruccions de funcionament
The HS41 is operated via a single side switch.
Funcionament bàsic
- Activar/Desactivar: 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.
- Mode de memòria: El capamp will remember the last used brightness level (except for special modes like Strobe, SOS, Beacon).
Modes d'accés ràpid
- Clar de lluna: From OFF, press and hold the switch for 1 second to activate Moonlight mode.
- Mode alt: From OFF, double-click the switch to directly activate High mode.
- Mode estroboscòpic: From OFF, triple-click the switch to activate Strobe mode.

El capamp'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.
Funció de bloqueig
To prevent accidental activation, the HS41 features a lockout mode.
- Activa el bloqueig: From OFF, perform four quick clicks of the switch. The LED will blink twice to confirm lockout mode is active.
- Desactiva el bloqueig: Perform four quick clicks of the switch. The light will turn on to the last used mode.

El capamp features a lockout mode to prevent accidental activation. It is engaged by four quick clicks when the light is off, indicated by two blinks.
Indicador d'alimentació
The power indicator displays the battery level for 5 seconds every time the light is turned on.
- Verd: Remaining battery power is good (70% - 100%).
- Vermell: Remaining battery power is poor (30% - 69%).
- Vermell intermitent: 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.
Volum baixtage Avís
Quan la 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.

Quan la bateria voltage baixa per sota dels 3 V, el headlamp's indicator will flash red, and the device will vibrate twice with a one-minute interval, signaling a low voltage condició.
6. Manteniment
Neteja
- Netegeu el capamp amb un suau, damp drap per eliminar la brutícia i els residus.
- No utilitzeu productes de neteja abrasius ni dissolvents, ja que poden danyar l'acabat o els components interns.
- 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.
Cura de la bateria
- Recharge the battery regularly, especially if the headlamp no s'utilitzarà durant un període prolongat.
- Guardeu la bateria en un lloc fresc i sec.
- If storing for a long time, remove the battery from the headlamp to prevent parasitic drain.
Emmagatzematge
- Guardeu el capamp en un ambient sec, allunyat de la llum solar directa i de temperatures extremes.
- Assegureu-vos del capçalamp is in lockout mode or the battery is removed during storage to prevent accidental activation.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La llum no s'encén | Bateria esgotada Battery incorrectly inserted Tail cap loose Capamp in lockout mode | Recarrega la bateria Comproveu la polaritat de la bateria Premeu la tapa de la cua Deactivate lockout mode (4 clicks) |
| La llum parpelleja o és tènue | Bateria baixa Poor contact between battery and terminals Dirty threads/contacts | Recarrega la bateria Ensure battery is fully inserted Clean threads and contacts with a cotton swab |
| La càrrega no funciona | Cable de càrrega defectuós USB power source insufficient Charging port dirty | Prova un altre cable USB-C Use a reliable USB power adapter Clean the USB-C port gently |
| Capamp 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. Especificacions
| Característica | Especificació |
|---|---|
| Model | HS41 |
| Font de llum | 4*SST20 LEDs |
| Brillantor màxima | 4000 lúmens |
| Distància del feix | 325 metres |
| Font d'alimentació | 1x Rechargeable Lithium Polymer Battery (included) |
| Port de càrrega | USB tipus C |
| Material | Aliatge d'alumini |
| Resistència a l'aigua | IPX8 (submergible fins a 2 metres durant 30 minuts) |
| Resistència a l'impacte | 1 metre |
| Dimensions | 1" de profunditat x 1" d'amplada x 1" d'alçada (aprox. 30.1 mm x 29 mm x 115 mm) |
| Pes | 0.71 Pounds (approx. 11.4 ounces / 79g without battery) |
| Característiques especials | Adjustable Light Modes, Adjustable Strap, Magnetic Base, Low Voltage Warning, Advanced Temperature Regulation |
9. Garantia i Suport
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.





