1. Introduction
Thank you for choosing the Gritin G1352 Rechargeable LED Headlamp. This headlamp is designed to provide super bright and stable illumination for various outdoor and indoor activities. With its 2000-lumen output, motion sensor, multiple lighting modes, and adjustable angle, it offers convenience and reliability. Please read this manual carefully before use to ensure proper operation and maintenance.
2. Safety Information
- Do not look directly into the LED light when it is on, as it can cause temporary vision impairment.
- Keep the headlamp away from children.
- Do not disassemble or modify the headlamp. This may cause damage and void the warranty.
- Use only the provided USB cable for charging.
- Avoid exposing the headlamp to extreme temperatures or direct sunlight for extended periods.
- Ensure the charging port cover is securely closed when not charging to maintain IPX5 water resistance.
3. Package Contents
- Gritin G1352 Rechargeable LED Headlamp (1)
- USB Charging Cable (1)
- User Manual (1)

Image: Gritin G1352 Headlamp and USB charging cable.
4. Product Overview
The Gritin G1352 headlamp features a durable aluminum body, an adjustable elastic headband for comfort, and a soft sponge pad for reduced pressure on the head. It is designed with an IPX5 waterproof rating, making it suitable for various weather conditions.

Image: Close-up of Gritin G1352 headlamp highlighting IPX5 waterproof rating, adjustable headband, and soft sponge pad.
5. Charging Instructions
The headlamp is equipped with a built-in 2000mAh rechargeable Lithium-ion battery. To charge the device:
- Locate the USB charging port on the headlamp.
- Connect the included USB charging cable to the headlamp's port.
- Connect the other end of the USB cable to a power source, such as a power bank, laptop, or USB wall charger.
- The indicator light will show red during charging and turn green when fully charged.
- A full charge provides approximately 21 to 30 hours of stable illumination, depending on the mode used.

Image: Gritin G1352 headlamp being charged via USB, showing red indicator for charging and green for fully charged.
6. Operating Instructions
6.1 Power On/Off and Mode Selection
The headlamp features a single-button control for power and mode selection.
- To Power On: Press the power button once. The headlamp will turn on in High Light mode.
- To Change Modes: Press the power button repeatedly to cycle through the modes: High Light → Low Light → Strobe (SOS).
- To Power Off: Press the power button after cycling through all modes, or press and hold the power button for 2 seconds in any mode.

Image: Three brightness modes: High Light, Low Light, and Strobe (SOS).
6.2 Motion Sensor Mode
The headlamp includes a motion sensor for hands-free operation.
- To Activate Motion Sensor: Long press the dedicated sensor button (usually located near the power button). The indicator light will change to confirm activation.
- To Operate: Once activated, wave your hand within 30 cm (12 inches) in front of the headlamp to turn the light ON or OFF.
- To Deactivate Motion Sensor: Long press the sensor button again.

Image: Activating motion sensor mode by waving a hand.
6.3 Angle Adjustment
The lamp head can be adjusted up to 90 degrees to direct the light beam as needed.
- Gently tilt the lamp head up or down to achieve the desired lighting angle.
- This feature allows for a wider field of view and precise illumination for different tasks or terrains.

Image: 90-degree adjustable headlamp angle.
7. Maintenance
- Clean the headlamp with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Store the headlamp in a cool, dry place when not in use.
- Charge the battery at least once every three months to maintain battery health if stored for long periods.
- Ensure the charging port cover is sealed to prevent water ingress.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headlamp does not turn on. | Battery is depleted. | Charge the headlamp using the provided USB cable. |
| Light output is dim. | Low battery level. | Recharge the headlamp. |
| Motion sensor not responding. | Motion sensor mode is not activated or obstruction. | Long press the sensor button to activate. Ensure no obstructions are blocking the sensor. Wave hand within 30 cm. |
| Headlamp not charging. | Faulty cable or power source. | Try a different USB cable or power adapter. Ensure connections are secure. |
9. Specifications
| Feature | Specification |
|---|---|
| Brand | Gritin |
| Model Number | G1352 |
| Luminous Flux | 2000 lumens |
| Battery Type | 1 Lithium-ion (included) |
| Battery Capacity | 2000mAh |
| Voltage | 3.7 Volts |
| Bulb Type | LED |
| Material | Aluminum |
| Color | Black |
| Waterproof Rating | IPX5 |
| Product Dimensions (L x W x H) | 7.8 x 7.49 x 4.39 cm |
| Item Weight | 129 grams |
| Special Features | Rechargeable, Motion Sensor, 90° Adjustable Angle |
10. Warranty and Support
Warranty information for the Gritin G1352 Headlamp is not specified in the provided product details. For support or warranty inquiries, please refer to the product packaging or contact Gritin customer service directly through their official website or the retailer where the product was purchased.
11. Intended Use Cases
The Gritin G1352 headlamp is suitable for a wide range of activities requiring hands-free illumination:
- Running and Jogging
- Camping and Hiking
- Cycling and Mountain Biking
- Fishing
- Car Repair and DIY Projects
- Exploration and Emergency Use
- Reading in low light conditions

Image: Gritin G1352 headlamp in various use scenarios.





