Sofirn H25LR LED Rechargeable Headlamp User Manual

1. Introduction

Thank you for choosing the Sofirn H25LR LED Rechargeable Headlamp. This headlamp is designed for versatility and durability, featuring dual LED emitters for both high CRI white light and 660nm deep red light. It is ideal for various outdoor activities such as diving, caving, camping, searching, fishing, and cycling, as well as for professional use. This manual provides detailed instructions for the safe and efficient use of your new headlamp.

2. Product Overview

2.1 Package Contents

• 1 x Sofirn H25LR Headlamp
• 1 x USB-C Charging Cable
• 1 x 18650 Battery (2200mAh)

2.2 Key Features

• Dual LED Emitters: Features a LH351D 5000K LED with 90 CRI for comfortable white light and an SST20 DR 660nm red LED for night vision protection and potential eyesight improvement.
• USB-C Rechargeable: Built-in USB-C charging port for convenient battery charging without removal.
• Power Indicator: Thoughtful LED indicator reminds you to recharge when power is low and shows charging status.
• Durable Construction: Made from aircraft-grade aluminum with a hard-anodized anti-abrasive finish, designed for rough handling.
• Waterproof: IPX6 rated for protection against liquid intrusion.
• Lightweight Design: Weighs 80g (without battery) for comfortable extended wear.
• Adjustable Beam: 180° angle adjustment for directing light precisely.
• Mode Memory: Automatically memorizes the last used brightness level.

2.3 Product Diagram

3. Specifications

4. Setup

4.1 Initial Charge

Your H25LR headlamp comes with a pre-installed 18650 battery. For optimal performance, it is recommended to fully charge the headlamp before its first use.

1. Locate the USB-C charging port on the headlamp, usually protected by a rubber cap.
2. Open the protective cap.
3. Connect the provided USB-C charging cable to the headlamp and plug the other end into a suitable USB power source (e.g., wall adapter, computer USB port).
4. The LED indicator will glow red during charging.
5. Once fully charged (approximately 4-6 hours), the LED indicator will turn green.
6. Disconnect the charging cable and securely close the protective cap to maintain the IPX6 waterproof rating.

4.2 Adjusting the Headband

The elastic headband is adjustable to ensure a comfortable and secure fit. Simply slide the buckles on the strap to tighten or loosen it around your head or helmet.

5. Operation

5.1 White LED Operation

1. Turn On/Off: From the OFF state, a single click of the power button will turn on the white LED. Click again to turn it off.
2. Change Brightness Modes: While the white LED is ON, press and hold the power button to cycle through the brightness modes: Moonlight → Low → Medium → High. Release the button at your desired brightness.

5.2 Red LED Operation

1. Turn On/Off: From the OFF state, press and hold the power button to turn on the red LED. Click again to turn it off.
2. Change Brightness Modes: While the red LED is ON, press and hold the power button to cycle through the brightness modes: Moonlight → Low → Medium → High. Release the button at your desired brightness.

5.3 Mode Memory

The H25LR headlamp features mode memory. It will automatically turn back on to the last brightness level used for both white and red light modes.

6. Maintenance

6.1 Cleaning

• Wipe the headlamp with a clean, soft cloth.
• Avoid using abrasive cleaners or solvents that could damage the finish or internal components.
• Ensure the USB-C port cover is clean and properly sealed after charging to maintain water resistance.

6.2 Battery Care

• Charge the battery regularly, even if the headlamp is not in frequent use, to prolong its lifespan.
• Avoid fully discharging the battery repeatedly.
• Store the headlamp in a cool, dry place when not in use for extended periods.

7. Troubleshooting

7.1 Light Not Turning On

• Check Battery Charge: Ensure the battery is sufficiently charged. Connect the headlamp to a USB-C charger and check the indicator light.
• Battery Connection: Although the battery is built-in, ensure no internal dislodgement has occurred from severe impact.
• Button Functionality: Ensure the power button is not stuck or damaged.

7.2 Headlamp Not Charging

• USB-C Cable: Ensure the USB-C cable is properly connected to both the headlamp and the power source. Try a different USB-C cable if available.
• Power Source: Verify that the USB power source is functional. Try plugging another device into the same power source.
• Charging Port: Check the USB-C charging port for any debris or damage. Clean gently if necessary.
• Indicator Light: If the indicator light does not turn red when connected, there might be an issue with the charging circuit or battery.

7.3 Dim Light Output

• Battery Level: Dim light often indicates a low battery. Recharge the headlamp fully.
• Lens Cleanliness: Ensure the lens is clean and free from dirt or smudges that could obstruct light output.

8. User Tips

• Confirm USB-C: The H25LR uses a USB-C charging port, not Micro USB, for modern and convenient charging.
• Battery Included: The headlamp comes with a 2200mAh 18650 battery, so it's ready to use after an initial charge.
• Red Light for Night Vision: Utilize the deep red 660nm LED when you need to preserve your night vision, as it causes less pupil constriction than white light.
• Adjustable Angle: Don't forget to adjust the headlamp's angle up to 180 degrees to direct the light exactly where you need it, enhancing comfort and utility.

9. Warranty & Support

Sofirn products are manufactured to high-quality standards. For any issues or questions regarding your H25LR headlamp, please contact the seller or Sofirn customer support. Keep your purchase receipt as proof of purchase for warranty claims.