Product Overview
The ALONEFIRE SV117 is a powerful 365nm UV flashlight designed for professional and household use. It features a high-powered 7-piece 4-core 365nm UV LED, a black UV filter lens for purer light, a durable aluminum alloy shell, USB-C rechargeable capabilities, a digital LCD display for power level, and reverse charging functionality.

Image: ALONEFIRE SV117 365nm UV Flashlight, showing the flashlight, USB-C charging cable, and yellow UV protective glasses.
Setup
Battery Installation
The ALONEFIRE SV117 UV flashlight requires one 6600mAh Lithium Ion battery (included). To install the battery, unscrew the tail cap of the flashlight. Insert the battery with the positive (+) end facing towards the head of the flashlight. Securely screw the tail cap back on.

Image: The ALONEFIRE SV117 UV Flashlight being charged via its USB-C port, with the LCD screen indicating battery percentage.
Charging the Flashlight
The flashlight is equipped with a USB-C charging port for convenient recharging. Connect the provided USB-C cable to the flashlight's charging port and the other end to a compatible USB power source. The digital LCD screen will display the charging progress, showing 'IN' and the percentage. A 100% display indicates a full charge.
Reverse Charging Functionality
This UV flashlight supports reverse charging, allowing it to function as an improvised power bank. Use the USB-A output port to charge other devices on the go. Ensure the flashlight has sufficient charge before attempting to charge external devices.

Image: The ALONEFIRE SV117 UV Flashlight connected to a smartphone, illustrating its reverse charging feature.
Operating Instructions
Power On/Off and Mode Selection
Press the power button located on the side of the flashlight to turn it on or off. The SV117 features a single powerful UV mode. The digital LCD display provides real-time information on the current power level.

Image: A close-up view of the intelligent LCD display on the ALONEFIRE SV117, showing the digital battery level.
Applications
The 365nm UV light is ideal for detecting fluorescent substances not visible under normal light. Always wear the included UV protective glasses when operating the flashlight to protect your eyes.
- Pet Urine and Stains: Effectively identifies dried pet urine, ringworm, and other organic stains on carpets, furniture, and other surfaces.
- Currency and Document Authentication: Reveals security features on banknotes, passports, and other official documents.
- Mineral and Gemstone Detection: Causes certain minerals and gemstones to fluoresce, aiding in identification.
- Pest Detection: Useful for detecting scorpions and bed bugs.
- Resin and Glue Curing: Accelerates the curing process of UV-sensitive resins and glues.
- Leak Detection: Can be used with fluorescent dyes to detect leaks in automotive systems or other machinery.

Image: The ALONEFIRE SV117 UV Flashlight being used to detect pet urine on a carpet and to identify pet skin ringworm.

Image: A visual comparison demonstrating the effectiveness of 365nm UV light in making minerals fluoresce, compared to normal light and 395nm UV light.
Video: Demonstrates the ALONEFIRE SV117 UV Flashlight's features, including battery installation, UV LED operation, reverse charging, and various applications such as mineral detection, engine leak detection, and ceramic crack identification.
Maintenance
Cleaning
Wipe the flashlight body with a soft, damp cloth. For the lens, use a lens cleaning cloth and solution to avoid scratches. Do not use abrasive cleaners or solvents.
Storage
Store the flashlight in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove the battery to prevent leakage and damage.
Battery Care
To prolong battery life, avoid fully discharging the battery frequently. Recharge the battery regularly, even if the flashlight is not in use, to maintain optimal performance.
Troubleshooting
If the flashlight does not turn on:
- Ensure the battery is correctly installed with the positive (+) end facing the head.
- Check if the battery is charged. Recharge if necessary.
- Verify that the tail cap is securely tightened.
If the flashlight's performance seems diminished:
- Clean the lens surface.
- Ensure the battery is fully charged.
For issues not covered here, please refer to the warranty and support information.
Specifications
| Feature | Detail |
|---|---|
| Model | SV117 |
| Brand | ALONEFIRE |
| Special Feature | High Power, Non Slip Grip, Rechargeable |
| Color | Black |
| Power Source | Battery Powered |
| Light Source Type | LED (7pcs 4-cores 365nm UV LED) |
| Material | Anodized Aluminum |
| Included Components | Battery |
| Voltage | 3.7 Volts (DC) |
| Battery Cell Composition | Lithium Ion |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Water Resistance Level | Not Water Resistant |
| Brightness | 9000 lumen (UV output) |
| Item Weight | 1.3 pounds |
| Package Dimensions | 7.91 x 5.24 x 2.44 inches |
Warranty and Support
The ALONEFIRE SV117 UV Flashlight comes with a limited warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact ALONEFIRE customer support.
For additional support or to explore other products, visit the official ALONEFIRE Store: ALONEFIRE Store on Amazon.

