Introduction
Thank you for choosing the Sofirn SD05B Dive Light. This high-performance flashlight is designed for underwater activities, offering 3000 lumens of bright illumination and a waterproof rating of IPX8, allowing it to operate up to 100 meters deep. This manual provides essential information for the safe and effective use, setup, operation, and maintenance of your dive light.
The Sofirn SD05B Dive Light, a compact and powerful illumination tool for underwater use.
Safety Information
- Always inspect the flashlight, especially the O-rings and threads, before each dive to ensure proper sealing and prevent water ingress.
- Do not look directly into the light beam when the flashlight is on, as it can cause temporary vision impairment.
- Keep the flashlight out of reach of children.
- Use only the recommended battery type and charger. Improper use can lead to battery damage or safety hazards.
- Avoid disassembling the sealed head of the flashlight, as this may damage the light and void the warranty.
- After each use in saltwater, rinse the flashlight thoroughly with fresh water and wipe it dry.
Package Contents
Please check the package for the following items:
- 1 x Sofirn SD05B Dive Light
- 1 x Rechargeable Battery
- 1 x Battery Charger
- 1 x Lanyard
- 1 x User Manual
- Spare O-rings (if included)
Setup
1. Battery Installation
- Unscrew the tail cap of the flashlight counter-clockwise.
- Insert the provided rechargeable battery with the positive (+) end facing towards the flashlight head.
- Carefully screw the tail cap back on clockwise until it is fully tightened. Ensure the O-rings are properly seated to maintain the waterproof seal.
2. Charging the Battery
Before first use, fully charge the battery using the provided charger.
- Connect the charger to a power source.
- Place the battery into the charger according to the polarity markings.
- The indicator light on the charger will show the charging status (e.g., red for charging, green for fully charged).
- Once fully charged, remove the battery from the charger.
3. Attaching the Lanyard
The SD05B features an upgraded tail cap design for easier lanyard attachment.
- Thread the lanyard through the dedicated slot on the tail cap.
- Secure the lanyard as desired to prevent accidental drops, especially during underwater activities.
The SD05B features an upgraded tail cap for improved lanyard attachment compared to the previous model.
Operating Instructions
Magnetic Ring Switch
The Sofirn SD05B uses a magnetic control ring for easy and reliable operation, even underwater.
- Turn On/Off: Rotate the magnetic ring from the 'Off' position (indicated by 'Ø') to any brightness mode (Low, Medium, High) to turn the flashlight on. Rotate it back to 'Ø' to turn it off.
- Mode Selection: While the flashlight is on, rotate the magnetic ring to cycle through the brightness modes: Low (L), Medium (M), and High (H).
The magnetic control ring allows for easy mode selection and power control.
Usage Scenarios
The SD05B is suitable for various activities:
- Tech Diving: Provides powerful illumination for technical dives.
- Underwater Videos/Photography: Offers consistent light for capturing marine life.
- Caving: Durable and bright for exploring dark environments.
- Beach Combing: Useful for night exploration along shorelines.
The Sofirn SD05B is a versatile light for various demanding environments.
Maintenance
1. General Care
- After each dive, especially in saltwater, rinse the flashlight thoroughly with fresh water to remove salt and debris.
- Wipe the flashlight dry with a soft cloth.
- Store the flashlight in a cool, dry place away from direct sunlight.
2. O-Ring Maintenance
The O-rings are crucial for maintaining the waterproof seal.
- Regularly inspect the O-rings for any cuts, cracks, or signs of wear.
- Clean any dirt or debris from the O-rings and their grooves.
- Apply a thin layer of silicone grease to the O-rings periodically to keep them supple and ensure a good seal.
- Replace damaged O-rings immediately with the provided spare O-rings or genuine Sofirn replacements.
3. Battery Care
- Remove the battery if the flashlight will not be used for an extended period to prevent potential leakage or damage.
- Store batteries in a protective case to prevent short circuits.
- Recharge batteries before they are completely depleted to prolong their lifespan.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flashlight does not turn on. | Battery is dead or incorrectly inserted. | Charge the battery or re-insert it with correct polarity. |
| Flashlight flickers or has low output. | Low battery power; loose connections; dirty contacts. | Recharge battery; ensure tail cap is tightened; clean battery contacts and threads. |
| Water ingress after diving. | Damaged or improperly seated O-rings; tail cap not fully tightened. | Inspect and clean O-rings, apply silicone grease, replace if damaged. Ensure tail cap is securely tightened before diving. |
| Magnetic ring switch is stiff. | Saltwater residue or debris. | Rinse the switch area with fresh water and rotate it several times to clear debris. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | SD05B |
| Brand | Sofirn |
| Light Source Type | LED |
| Material | Durable Aircraft-Grade Aluminum |
| Color | Black |
| Power Source | Battery Powered |
| Battery Type | Lithium Polymer (1 included) |
| Water Resistance | IPX8, up to 100 meters underwater |
| Impact Resistance | 1 meter |
| Dimensions (L x D) | 4.69" x 1.48" (11.9cm x 3.76cm) |
| Mounting Type | Handheld |
| Mode | Luminous Flux (lm) | Runtime (h) | Beam Distance (m) | Peak Intensity (cd) |
|---|---|---|---|---|
| High | 3000 | 1.5 | 270 | 18250 |
| Medium | 1000 | 2.5 | 150 | 5691 |
| Low | 320 | 8.5 | 86 | 1850 |
Note: The above data is approximate and may vary based on battery and environmental conditions.
Visual representation of the SD05B's performance parameters across different modes.
Warranty Information
The Sofirn SD05B Dive Light comes with a 1-year manufacturer's warranty from the date of purchase. This warranty covers manufacturing defects and workmanship. It does not cover damage caused by misuse, unauthorized modification, improper maintenance, or normal wear and tear. Please retain your proof of purchase for warranty claims.
Customer Support
If you encounter any problems or have questions regarding your Sofirn SD05B Dive Light, please contact Sofirn customer service. Refer to the contact information provided with your purchase or visit the official Sofirn website for support.
