1. Sarrera
Eskerrik asko erosketagatik.asing the Sofirn HS21 and D25S headlamps. These headlamps are designed for various outdoor activities, offering reliable illumination and convenient features. This manual provides detailed instructions for the safe and effective use, setup, operation, and maintenance of your new headlamps. Please read this manual thoroughly before use and retain it for future reference.
2. Segurtasun-argibideak
- Do not shine the light directly into eyes. The powerful beam can cause temporary vision impairment or permanent eye damage.
- Mantendu haurren eskura.
- Ez desmuntatu headlamp. This may damage the device and void the warranty.
- Use only the recommended battery types. Improper battery use can lead to fire, explosion, or leakage.
- Saihestu headl agerianamp muturreko tenperatura edo eguzki-argia zuzeneko denbora luzez.
- Kargatzen ari ez zarenean, ziurtatu USB-C kargatzeko atakaren estalkia ondo itxita dagoela urarekiko erresistentzia mantentzeko.
3. Paketearen edukia
- 1 x Sofirn HS21 Headlamp
- 1 x Sofirn D25S Headlamp
- 2 x Buruko zinta
- 2 x USB-C kargatzeko kable
- 2 x Rechargeable Batteries (pre-installed or separate)
- 1 x Erabiltzailearen eskuliburua
4. Produktua amaitu daview
4.1 Sofirn HS21 Headlamp
The Sofirn HS21 is a versatile headlamp featuring a combination of spotlight, floodlight, and red light. It is equipped with a convenient rotary switch for easy mode selection and offers a wide 130° rotation adjustment for optimal illumination angle.

Image 1: Sofirn HS21 Headlamp showing its various light modes including red light, spotlight, and floodlight.

Image 2: The Sofirn HS21 headlamp demonstrating its 130-degree rotation capability for adjustable light direction.
4.2 Sofirn D25S Headlamp
The Sofirn D25S is a compact and powerful headlamp utilizing an SST40 LED, offering multiple brightness levels. It features a hidden USB-C charging port for convenient recharging and a simple user interface with memory mode.

Image 3: Sofirn D25S Headlamp highlighting its comfortable switch and simple user interface.
5. Konfigurazioa
5.1 Bateriaren instalazioa
Both HS21 and D25S headlamps typically come with batteries pre-installed. If not, or if replacing batteries:
- Unscrew the tail cap of the headlamp gorputza.
- Insert the rechargeable battery with the positive (+) terminal facing towards the head of the lamp.
- Itxi isats-tapoia ondo torlojutu kontaktu egokia eta urarekiko erresistentzia bermatzeko.
5.2 Kargatzen
Biak buruamps feature a built-in USB-C charging port.
For HS21:
- Locate the USB-C charging port on the side of the headlamp gorputza.
- Gently lift the protective rubber cover to expose the port.
- Konektatu emandako USB-C kablea burura.amp and to a USB power source (e.g., wall adapter, power bank, computer).
- Adierazle-argia gorriz agertuko da kargatzen ari den bitartean eta berde bihurtuko da guztiz kargatuta dagoenean.
- Once charging is complete, securely close the rubber cover to protect the port from dust and water.

Image 4: Sofirn HS21 Headlamp connected to a USB-C charging cable, showing the charging indicator light.
For D25S:
- Unscrew the head of the D25S headlamp to reveal the hidden USB-C charging port.
- Konektatu emandako USB-C kablea burura.amp and to a USB power source.
- Adierazle-argia gorriz agertuko da kargatzen ari den bitartean eta berde bihurtuko da guztiz kargatuta dagoenean.
- After charging, screw the head back on tightly to ensure water resistance.

Image 5: Sofirn D25S Headlamp with its head unscrewed, revealing the built-in USB-C charging port.
6. Funtzionamendu-argibideak
6.1 Sofirn HS21 Headlamp Funtzionamendua
The HS21 features a rotary switch for easy mode selection and a separate power button.

Image 6: Illustration of the Sofirn HS21's rotary switch mechanism for changing light modes.
- Piztu/Itzali: Sakatu pizteko botoia behin burua biratzekoamp piztu edo itzali.
- Modu aukeraketa: Rotate the head part of the headlamp to cycle through the main light modes: Red Light, Spotlight, Floodlight, and Spotlight + Floodlight (combined).
- Distira doitzea: While a mode is active, press and hold the power button to cycle through brightness levels (Low, Medium, High). Release the button at your desired brightness.
- Red Light Activation: Rotate to the red light setting. Press and hold the power button for additional red light modes (e.g., red strobe, red beacon).

Image 7: The Sofirn HS21 headlamp displaying its four primary light modes: Red Light, Spot & Flood, Floodlight, and Spotlight.

Image 8: The Sofirn HS21 headlamp emitting a 620 NM red light, suitable for preserving night vision.
6.2 Sofirn D25S Headlamp Funtzionamendua
The D25S operates with a single button interface.
- Piztu/Itzali: Press the button once to turn the headlamp piztu edo itzali.
- Txirrindularitza Modua: Burua berrizamp is on, press and hold the button to cycle through brightness modes: Low → Medium 1 → Medium 2 → High. Release the button at your desired mode.
- Turbo modua: From any mode, double-click the button to activate Turbo mode. Double-click again to return to the previous mode.
- Memoria Funtzioa: The D25S will remember the last used brightness level (excluding Turbo) and turn on in that mode.
7. Mantentzea
- Garbiketa: Garbitu buruaamp bigun batekin, damp oihal. Ez erabili garbitzaile edo disolbatzaile urratzailerik.
- O-eraztunak: Periodically check and lubricate the O-rings with silicone grease to maintain water resistance. Replace damaged O-rings.
- Bateria zaintzea: Burua badaamp will not be used for an extended period, remove the battery to prevent leakage. Recharge batteries regularly to prolong their lifespan.
- Biltegiratzea: Gorde buruaamp leku fresko eta lehor batean eguzki-argitik urrun.
8. Arazoak
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Buruaamp ez da pizten | Low battery; Battery incorrectly installed; Loose tail cap; Faulty battery. | Charge battery; Reinstall battery with correct polarity; Tighten tail cap; Replace battery. |
| Argiaren irteera apala da | Low battery; Lens is dirty. | Charge battery; Clean the lens. |
| Kargatzea ez dabil | Cable not connected properly; Faulty cable or power source; Charging port obstructed. | Ensure secure connection; Try a different cable/power source; Clean charging port. |
| Ura sartzea | O-rings damaged or missing; Tail cap/charging port cover not sealed properly. | Check and replace O-rings; Ensure all caps are tightly sealed. |
9. Zehaztapenak
9.1 Sofirn HS21 Headlamp
| Ezaugarri | Xehetasuna |
|---|---|
| Argi iturria | LED (Spotlight, Floodlight, Red Light) |
| Irteera maximoa | 2200 Lumens (Spotlight + Floodlight) |
| Argi Gorriaren uhin-luzera | 620 NM |
| Aldatu mota | Rotary Switch + Push Button |
| Kargatzen | USB-C kargagarria |
| Errotazioa | 130° erregulagarria |
| Neurriak | 3.4 x 1.8 x 1.4 hazbete |
| Pisua | 0.3 lb (bateria barne) |

Image 9: The Sofirn HS21 headlamp demonstrating its ultra-bright output and beam distance of up to 754 feet.
9.2 Sofirn D25S Headlamp
| Ezaugarri | Xehetasuna |
|---|---|
| Argi iturria | SST40 LED |
| Irteera maximoa | 1200 lumen |
| Moduak | Low, Medium 1, Medium 2, High, Turbo |
| Kargatzen | Hidden USB-C Rechargeable |
| Ezaugarri bereziak | Memoria modua |
10. Bermea eta Laguntza
Sofirn products are covered by a limited warranty. For specific warranty details, please refer to the warranty card included with your product or visit the official Sofirn website. For technical support, troubleshooting assistance, or warranty claims, please contact Sofirn customer service through the retailer where you purchased the product or via the contact information provided on the official Sofirn webgunea.