1. Pengenalan
Terima kasih kerana membeliasing 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. Arahan Keselamatan
- Jangan nyalakan cahaya terus ke mata. Pancaran yang kuat boleh menyebabkan gangguan penglihatan sementara atau kerosakan mata kekal.
- Jauhkan daripada kanak-kanak.
- Jangan buka kepalaamp. 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.
- Elakkan daripada mendedahkan kepalaamp kepada suhu yang melampau atau cahaya matahari langsung untuk tempoh yang lama.
- Pastikan penutup port pengecasan USB-C ditutup rapat apabila tidak dicas untuk mengekalkan kalis air.
3. Kandungan Pakej
- 1 x Sofirn HS21 Headlamp
- 1 x Sofirn D25S Headlamp
- 2 x Ikat Kepala
- 2 x Kabel Pengecas USB-C
- 2 x Rechargeable Batteries (pre-installed or separate)
- 1 x Manual Pengguna
4. Produk Lebihview
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. Persediaan
5.1 Pemasangan Bateri
Both HS21 and D25S headlamps typically come with batteries pre-installed. If not, or if replacing batteries:
- Tanggalkan penutup ekor kepalaamp badan.
- Insert the rechargeable battery with the positive (+) terminal facing towards the head of the lamp.
- Skru penutup ekor kembali dengan ketat untuk memastikan sentuhan yang betul dan rintangan air.
5.2 Mengecas
Kedua-duanya headlamps feature a built-in USB-C charging port.
For HS21:
- Cari port pengecasan USB-C di sisi kepalaamp badan.
- Gently lift the protective rubber cover to expose the port.
- Sambungkan kabel USB-C yang disediakan ke kepalaamp dan kepada sumber kuasa USB (cth., penyesuai dinding, bank kuasa, komputer).
- Lampu penunjuk akan menunjukkan warna merah semasa pengecasan dan bertukar menjadi hijau apabila dicas sepenuhnya.
- 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.
- Sambungkan kabel USB-C yang disediakan ke kepalaamp and to a USB power source.
- Lampu penunjuk akan menunjukkan warna merah semasa pengecasan dan bertukar menjadi hijau apabila dicas sepenuhnya.
- 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. Arahan 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.
- Hidupkan/Mati Kuasa: Tekan butang kuasa sekali untuk memusingkan kepalaamp hidup atau mati.
- Pemilihan Mod: Rotate the head part of the headlamp to cycle through the main light modes: Red Light, Spotlight, Floodlight, and Spotlight + Floodlight (combined).
- Pelarasan Kecerahan: 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 Operasi
The D25S operates with a single button interface.
- Hidupkan/Mati Kuasa: Press the button once to turn the headlamp hidup atau mati.
- Mod Berbasikal: Manakala kepalaamp 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.
- Mod Turbo: From any mode, double-click the button to activate Turbo mode. Double-click again to return to the previous mode.
- Fungsi Memori: The D25S will remember the last used brightness level (excluding Turbo) and turn on in that mode.
7. Penyelenggaraan
- Pembersihan: Lap kepalaamp dengan lembut, damp kain. Jangan gunakan pembersih atau pelarut yang melelas.
- cincin-O: Periodically check and lubricate the O-rings with silicone grease to maintain water resistance. Replace damaged O-rings.
- Penjagaan Bateri: Jika kepalaamp will not be used for an extended period, remove the battery to prevent leakage. Recharge batteries regularly to prolong their lifespan.
- Storan: Simpan kepalaamp di tempat yang sejuk dan kering jauh dari cahaya matahari langsung.
8. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Ketuaamp tidak menyala | Low battery; Battery incorrectly installed; Loose tail cap; Faulty battery. | Charge battery; Reinstall battery with correct polarity; Tighten tail cap; Replace battery. |
| Keluaran cahaya adalah malap | Low battery; Lens is dirty. | Charge battery; Clean the lens. |
| Mengecas tidak berfungsi | Cable not connected properly; Faulty cable or power source; Charging port obstructed. | Ensure secure connection; Try a different cable/power source; Clean charging port. |
| Kemasukan air | 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. Spesifikasi
9.1 Sofirn HS21 Headlamp
| Ciri | Perincian |
|---|---|
| Sumber Cahaya | LED (Spotlight, Floodlight, Red Light) |
| Output Maks | 2200 Lumens (Spotlight + Floodlight) |
| Panjang Gelombang Cahaya Merah | 620 NM |
| Jenis Suis | Rotary Switch + Push Button |
| Mengecas | USB-C Boleh dicas semula |
| Putaran | 130° Boleh Laras |
| Dimensi | 3.4 x 1.8 x 1.4 inci |
| Berat badan | 0.3 lbs (termasuk bateri) |

Image 9: The Sofirn HS21 headlamp demonstrating its ultra-bright output and beam distance of up to 754 feet.
9.2 Sofirn D25S Headlamp
| Ciri | Perincian |
|---|---|
| Sumber Cahaya | SST40 LED |
| Output Maks | 1200 Lumen |
| Mod | Low, Medium 1, Medium 2, High, Turbo |
| Mengecas | Hidden USB-C Rechargeable |
| Ciri Khas | Mod Memori |
10. Waranti dan Sokongan
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 webtapak.