Introduction
This manual provides detailed instructions for the safe and effective use of your SUNREI Rechargeable LED Box Flashlight, Model TZ1200. This versatile device functions as a super bright flashlight, a portable camping lantern, and a power bank, designed for various outdoor activities, emergencies, and home use.

Image: The SUNREI Rechargeable LED Box Flashlight, gray color variant, showcasing its robust design.
What's in the Box
Upon opening the package, please ensure all the following items are present:
- SUNREI Rechargeable LED Box Flashlight (Model TZ1200)
- USB Type-C Charging Cable
- Adjustable Shoulder Strap
- User Manual (this document)

Image: The SUNREI flashlight, packaging, charging cable, and shoulder strap.
Specifications
| Feature | Specification |
|---|---|
| Model Number | TZ1200 |
| Light Source Type | LED (Spotlight and COB Side Light) |
| Max Brightness (Spotlight) | 1500 Lumens |
| Max Illumination Distance | 750 meters (2460 feet) |
| Battery Capacity | 10400 mAh Lithium Battery |
| Charging Time | Approximately 4.5 hours (via Type-C) |
| Battery Life | 6-24 hours (depending on mode) |
| Water Resistance | IP67 Waterproof |
| Material | High-strength Engineering ABS Plastic |
| Dimensions (L x W x H) | 7.87" x 5.11" x 4.33" (20cm x 13cm x 11cm) |
| Weight | 1.5 lb (0.87 kg) |
| Operating Temperature | -20°C to 55°C |

Image: Diagram showing the dimensions of the flashlight: 7.8 inches height, 5.1 inches depth, 4.3 inches width.
Setup
Initial Charging
Before first use, fully charge the flashlight. Connect the included Type-C cable to the charging port on the device and to a compatible USB power adapter (not included). The LED indicator lights will show the charging progress. All four lights will be solid when fully charged.

Image: The flashlight connected to a USB-C cable, with LED indicators showing charging status.
Attaching the Shoulder Strap
Attach the adjustable shoulder strap to the designated loops on the flashlight for convenient carrying. Ensure the clips are securely fastened.

Image: A person demonstrating how to carry the flashlight using the adjustable shoulder strap.
Operating Instructions
Power On/Off and Mode Selection
The flashlight features two main light sources: a front spotlight and a side COB panel. Each has multiple modes.
- Spotlight Modes: Press the power button to cycle through Low Brightness (240LM), Medium Brightness (600LM), and Full Brightness (1500LM).
- COB Side Light Modes: Press the dedicated COB button to cycle through Full Brightness White Light (600LM), Medium Brightness White Light (240LM), Red Light (45LM), and Red Light Strobe.
- To turn off the light, press the respective button until the light cycles off, or hold the button for a few seconds.

Image: Visual representation of the flashlight's seven lighting modes, including spotlight and COB panel options.
Power Bank Function
The built-in 10400mAh battery can be used to charge other electronic devices. Open the rubber seal on the side to access the USB output port. Connect your device using its charging cable. The flashlight will automatically begin charging your device.

Image: The flashlight connected via USB to charge various electronic devices, illustrating its power bank capability.
Battery Indicator
The LED indicator lights on the device display the current battery level and charging status. Each light represents approximately 25% of the battery capacity.

Image: Close-up of the flashlight's battery indicator lights, showing the charge level.
Maintenance
- Cleaning: Wipe the flashlight with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Waterproofing: The device is IP67 waterproof. Ensure the rubber drain plug for the charging port is securely closed to maintain water resistance.
- Storage: Store the flashlight in a cool, dry place when not in use. For long-term storage, charge the battery to approximately 50% every 3-6 months to prolong battery life.
- Battery Care: Avoid fully discharging the battery frequently. Recharge promptly when the battery indicator shows low power.

Image: The flashlight submerged in water, illustrating its IP67 waterproof capability.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flashlight does not turn on. | Low or depleted battery. | Charge the flashlight fully using the Type-C cable. |
| Light output is dim. | Low battery level or incorrect mode selected. | Recharge the battery. Cycle through modes to select a brighter setting. |
| Device not charging from power bank function. | Flashlight battery is low or cable is faulty. | Ensure flashlight is sufficiently charged. Try a different USB cable. |
| Water ingress despite IP67 rating. | Rubber charging port cover not sealed properly. | Ensure all port covers are firmly sealed before exposure to water. |
Warranty and Support
The SUNREI Rechargeable LED Box Flashlight (Model TZ1200) comes with a 1-year manufacturer's warranty. For warranty claims, technical support, or any inquiries, please contact SUNREI customer service through their official channels or the retailer where the product was purchased.
You can visit the official SUNREI Store for more information and product support: SUNREI Official Store
Official Product Videos
Video: Official SUNREI flashlight scene video, demonstrating the product in various usage scenarios.
Video: Official SUNREI Rechargeable LED 1200LM Flashlight overview, highlighting its features and brightness.