Introduction
This manual provides detailed instructions for the safe and effective use of your VASTFIRE 3 LED Tactical Flashlight. Please read this manual thoroughly before operating the device and retain it for future reference.

Image: VASTFIRE 3 LED Tactical Flashlight (Green light variant)
Setup
1. Unpacking
Carefully remove all components from the packaging. Ensure all parts are present and undamaged. The package typically includes the flashlight and may include accessories such as batteries and a charger, depending on the specific variant purchased.

Image: VASTFIRE 3 LED Tactical Flashlight with included accessories (batteries and charger)
2. Battery Installation
- Unscrew the tail cap of the flashlight by turning it counter-clockwise.
- Insert two 18650 batteries into the battery compartment. Ensure the positive (+) pole of each battery faces towards the head of the flashlight, and the negative (-) pole faces towards the tail cap.
- Screw the tail cap back on clockwise until it is securely tightened.
Video: Demonstration of battery installation and basic flashlight operation.
Operating Instructions
1. Power On/Off
Press the switch button located on the tail cap to turn the flashlight on or off.
2. Changing Light Color
The flashlight features a removable lamp head, allowing you to change the light color. The available colors are Red, Green, Blue, and White. To change the light color:
- Ensure the flashlight is turned off.
- Carefully unscrew the lamp head.
- Replace it with a lamp head of the desired color.
- Screw the new lamp head securely into place.

Image: Flashlight with Green Light

Image: Flashlight with Red Light

Image: Flashlight with White Light

Image: Flashlight with Blue Light
The flashlight supports a single file (mode) operation, meaning it operates at one brightness level for the selected color.
Maintenance
- Cleaning: Wipe the flashlight body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Battery Care:
- Always use high-quality 18650 rechargeable batteries.
- Remove batteries if the flashlight will not be used for an extended period to prevent leakage.
- Charge batteries using a compatible charger.
- Water Resistance: The flashlight is waterproof, but it is not designed for prolonged submersion. Avoid leaving it in water for extended periods.
- Lubrication: Periodically apply a thin layer of silicone grease to the O-rings and threads to maintain water resistance and smooth operation.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flashlight does not turn on. |
|
|
| Light is dim or flickers. |
|
|
| Water ingress. |
|
|
Specifications
| Feature | Detail |
|---|---|
| Brand | VASTFIRE |
| Body Material | 6061T Aluminum Alloy |
| Light Source | 3 * 5050 LED Wicks |
| Light Colors | Red, Green, Blue, White (interchangeable lamp heads) |
| Lighting Distance | Up to 500 yards (approx. 200-500 m) |
| Wattage | 10W |
| Current | 1.5A |
| Working Voltage | 3.7-7.4V |
| Power Supply | 2 x 18650 Rechargeable Batteries (not always included) |
| Focal Length | Non-adjustable |
| Support Dimmer | Single File (single mode) |
| Waterproof | Yes (IPX-rated, but avoid prolonged submersion) |
| Certification | CE |
| Product Dimensions | 215mm (Length) x 55mm (Head Diameter) x 30mm (Body Diameter) |
| Product Weight | 380g |

Image: Size comparison of the VASTFIRE 3 LED Tactical Flashlight
User Tips
- For optimal performance, ensure batteries are fully charged before extended use.
- The aluminum alloy body is designed for durability; however, avoid dropping the flashlight from significant heights to prevent damage.
- The sawtooth bezel can be used for self-defense in emergencies.
- When storing the flashlight for long periods, remove the batteries to prevent potential damage from battery leakage.
- Consider carrying spare charged batteries for prolonged outdoor activities.
Warranty & Support
This VASTFIRE product is manufactured to high-quality standards and is designed for reliable performance. For any questions, technical support, or warranty claims, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
The product is certified original, ensuring quality and authenticity. In case of delivery issues such as delays, lost packages, or damaged items, please reach out to the seller for assistance, as remedies like coupons or refunds may be available.





