1. Bubuka
Thank you for choosing Sofirn headlamps. This manual provides detailed instructions for the D25S and D25L models, designed for various outdoor activities and daily use. The D25S offers a powerful 1200 lumen output with USB-C recharging, while the D25L provides a comfortable 1000 lumen neutral beam with high Color Rendering Index (CRI) for accurate color perception and reduced eye fatigue.

Figure 1: Sofirn D25S and D25L Headlamps (bundle)
This image displays the Sofirn D25S and D25L headlamps, némbongkeunasing their compact design and dual-light configuration. The adjustable headband is also visible.

Figure 2: Lightweight Design and Floody Beam
This image shows the headlamp worn on a cap, illustrating its lightweight nature and the wide, even "floody" beam it produces, ideal for close-up tasks and general illumination.
2. Setélan
2.1 Battery Installation (Pre-installed)
Both Sofirn D25S and D25L headlamps come with pre-installed Lithium Ion batteries. Ensure the battery is properly seated before first use.
2.2 Charging (D25S Model)
The D25S model features a convenient built-in USB-C charging port. To charge, locate the hidden USB-C port and connect it to a compatible USB power source using the provided cable. The protective cap shields the USB-C port from damage and water when not in use.

Figure 3: USB-C Charging Port on D25S
This image highlights the built-in USB-C charging port on the Sofirn D25S headlamp, showing its location and the protective cap. Indicator lights for charging status (red for charging, green for full) are also depicted.
3. Parentah Operasi
3.1 Power On/Off and Mode Selection (D25S)
The D25S headlamp operates with a single button for simplicity. It features 5 different modes: Low, Medium 1, Medium 2, High, and Turbo. The headlamp also includes a memory mode, which means it will return to the last known setting when turned back on.
- Pikeun Ngahurungkeun/Pareuman: Pencét tombol daya sakali.
- Ka Modeu Siklus: While the light is on, press and hold the power button to cycle through Low, Medium 1, Medium 2, High, and Turbo modes. Release the button at your desired brightness level.
- Modeu Strobe: From any state (on or off), double-click the power button to activate Strobe mode. Double-click again to return to the previous mode.

Figure 4: D25S Control Button
This image shows a close-up of the green control button on the Sofirn D25S headlamp, emphasizing its comfortable feel and simple user interface. The memory mode feature is also highlighted.
3.2 D25L Beam Characteristics
The Sofirn D25L headlamp is equipped with dual powerful LH351D LEDs, providing a maximum output of 1000 lumens. Unlike some other bright headlamps, the D25L delivers a neutral beam with a high Color Rendering Index (CRI) of 90. This high CRI enables true color representation of objects, making it comfortable for prolonged use, including reading, and helps to avoid eye fatigue.

Figure 5: D25L Beam Pattern in Darkness
This image demonstrates the wide and even beam pattern of the Sofirn D25L headlamp in a dark outdoor setting, illuminating a path and surrounding trees.
3.3 Kapalaamp Penyesuaian
Duanana headlamps feature an adjustable headband for a secure and comfortable fit. The light unit itself can be adjusted up to 180 degrees vertically, allowing you to direct the beam precisely where needed without repositioning the entire headlamp.

Figure 6: Adjustable Features
This image illustrates the 180-degree angle adjustment capability of the headlamp unit and the adjustable nature of the elastic headband, ensuring a comfortable and customizable fit for the user.
4. Pangropéa
- beberesih: Ngusap sirahamp awakna lemes, damp lawon. Ulah make cleaners abrasive atawa pangleyur.
- Perawatan batré: For optimal battery life, charge the headlamp regularly. If storing for extended periods, charge the battery to approximately 50% and recharge every 3-6 months.
- Panyimpenan: Nyimpen headlamp dina tiis, tempat garing jauh ti sinar panonpoé langsung jeung suhu ekstrim.
5. Cara ngungkulan
- Lampu teu hurung:
- Pastikeun batréna dieusi pinuh.
- Pariksa naha batréna leres diselapkeun.
- Verify the power button is functioning.
- Kaluaran Cahaya Taram:
- The battery may be low; recharge the headlamp.
- Pastikeun lénsa bersih sareng bébas tina halangan.
6. Spésifikasi
| Fitur | Sofirn D25S | Sofirn D25L |
|---|---|---|
| Tipe Sumber Cahaya | SST40 LED | LH351D LED |
| Max Caang | 1200 Lumén | 1000 Lumén |
| Indéks Rendering Warna (CRI) | N/A | 90 |
| Sumber Daya | Batré Powered (Litium Ion) | Batré Powered (Litium Ion) |
| Bisa dicas deui | USB-C | N/A (Check product for D25L charging method if not USB-C) |
| Tingkat Résistansi Cai | Henteu Tahan Cai | Henteu Tahan Cai |
Catetan: Spésifikasi tiasa robih tanpa aya bewara. Punten tingal bungkusan produk kanggo inpormasi anu paling akurat sareng up-to-date.
7. Émbaran Kasalametan
- Ulah neuteup langsung kana sinar lampu pikeun nyingkahan tatu panon.
- Jauhkeun tina jangkauan barudak.
- Ulah ngabongkar headlamp, as this may void the warranty and cause damage.
- Ulah ngalaan headlamp ka suhu ekstrim atanapi sinar panonpoé langsung pikeun période anu berkepanjangan.
- Produk ieu henteu tahan cai. Hindarkeun kakeunaan cai atanapi kalembaban anu luhur.
8. Garansi jeung Rojongan
For warranty information, technical support, or any inquiries regarding your Sofirn headlamps, please refer to the warranty card included with your product or visit the official Sofirn website. Contact details for customer service are typically provided on the product packaging or the manufacturer's websitus.





