1. Bubuka
Hatur nuhun pikeun meuliasing 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. Parentah Kasalametan
- Ulah nyorotkeun lampu langsung kana panon. Sinar anu kuat ieu tiasa nyababkeun gangguan paningal samentawis atanapi karusakan panon permanén.
- Jauhkeun tina jangkauan barudak.
- Ulah ngabongkar 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.
- Ulah ngalaan headlamp ka suhu ekstrim atanapi sinar panonpoé langsung pikeun période anu berkepanjangan.
- Pastikeun panutup port ngecas USB-C ditutup pageuh nalika teu ngecas pikeun ngajaga tahan cai.
3. Eusi Paket
- 1 x Sofirn HS21 Headlamp
- 1 x Sofirn D25S Headlamp
- 2 x Bando
- 2 x Kabel Ngecas USB-C
- 2 x Rechargeable Batteries (pre-installed or separate)
- 1 x Manual Pamaké
4. Produk Langkungview
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. Setélan
5.1 Pamasangan batré
Both HS21 and D25S headlamps typically come with batteries pre-installed. If not, or if replacing batteries:
- Unscrew the tail cap of the headlamp awak.
- Insert the rechargeable battery with the positive (+) terminal facing towards the head of the lamp.
- Screw cap buntut deui pageuh pikeun mastikeun kontak ditangtoskeun jeung tahan cai.
5.2 Ngecas
Duanana headlamps feature a built-in USB-C charging port.
For HS21:
- Panggihan port ngecas USB-C di sisi headlamp awak.
- Gently lift the protective rubber cover to expose the port.
- Sambungkeun kabel USB-C anu disayogikeun ka headlamp and to a USB power source (e.g., wall adapter, power bank, computer).
- Lampu indikator bakal beureum nalika ngecas sareng janten héjo nalika dicas pinuh.
- 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.
- Sambungkeun kabel USB-C anu disayogikeun ka headlamp and to a USB power source.
- Lampu indikator bakal beureum nalika ngecas sareng janten héjo nalika dicas pinuh.
- 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. Parentah Operasi
6.1 Sofirn HS21 Headlamp Operasi
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.
- Hurungkeun/Pareuman: Press the power button once to turn the headlamp hurung atawa pareum.
- Pilihan Mode: Rotate the head part of the headlamp to cycle through the main light modes: Red Light, Spotlight, Floodlight, and Spotlight + Floodlight (combined).
- Penyesuaian Caang: 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.
- Aktivasina Lampu Beureum: 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 Operasi
The D25S operates with a single button interface.
- Hurungkeun/Pareuman: Press the button once to turn the headlamp hurung atawa pareum.
- Mode Ngabuburit: Sedengkeun headlamp 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.
- Modeu Turbo: From any mode, double-click the button to activate Turbo mode. Double-click again to return to the previous mode.
- Fungsi mémori: The D25S will remember the last used brightness level (excluding Turbo) and turn on in that mode.
7. Pangropéa
- beberesih: Ngusap sirahamp kalawan lemes, damp lawon. Ulah make cleaners abrasive atawa pangleyur.
- O-cingcin: Periodically check and lubricate the O-rings with silicone grease to maintain water resistance. Replace damaged O-rings.
- Perawatan batré: Lamun headlamp will not be used for an extended period, remove the battery to prevent leakage. Recharge batteries regularly to prolong their lifespan.
- Panyimpenan: Nyimpen headlamp dina tiis, tempat garing jauh tina sinar panonpoé langsung.
8. Cara ngungkulan
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Headlamp henteu hurung | Low battery; Battery incorrectly installed; Loose tail cap; Faulty battery. | Charge battery; Reinstall battery with correct polarity; Tighten tail cap; Replace battery. |
| Kaluaran lampu taram | Low battery; Lens is dirty. | Charge battery; Clean the lens. |
| Ngecas teu jalan | Cable not connected properly; Faulty cable or power source; Charging port obstructed. | Ensure secure connection; Try a different cable/power source; Clean charging port. |
| Asup cai | 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. Spésifikasi
9.1 Sofirn HS21 Headlamp
| Fitur | Rincian |
|---|---|
| Sumber Cahaya | LED (Lampu Sorotan, Lampu Sorot, Lampu Beureum) |
| Kaluaran Max | 2200 Lumens (Spotlight + Floodlight) |
| Panjang gelombang Lampu Beureum | 620 NM |
| Pindah Tipe | Rotary Switch + Push Button |
| Ngecas | USB-C Rechargeable |
| Rotasi | 130 ° adjustable |
| Diménsi | 3.4 x 1.8 x 1.4 inci |
| Beurat | 0.3 lbs (kaasup batré) |

Image 9: The Sofirn HS21 headlamp demonstrating its ultra-bright output and beam distance of up to 754 feet.
9.2 Sofirn D25S Headlamp
| Fitur | Rincian |
|---|---|
| Sumber Cahaya | SST40 LED |
| Kaluaran Max | 1200 Lumén |
| Modeu | Low, Medium 1, Medium 2, High, Turbo |
| Ngecas | Hidden USB-C Rechargeable |
| Fitur husus | Modeu mémori |
10. Garansi jeung Rojongan
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 websitus.





