Introduction
The Vansky UV Flashlight Black Light is a versatile tool designed to reveal substances invisible to the naked eye. Equipped with 51 UV LEDs, it is ideal for detecting pet urine stains, identifying scorpions, authenticating currency, and inspecting cleanliness in various environments. Its durable aluminum construction ensures reliability and longevity.

Figure 1: Vansky UV Flashlight Black Light
Key Features
- Find invisible stains: UV flashlight helps detect food stains and pet urine stains on rugs, carpets, and clothes that are otherwise invisible to the naked eye.
- Versatile use: Authenticate currency and official documents like driver's licenses or identify unwanted whitening agents in cosmetics; cure UV resin.
- Outdoor applications: Perfect for outside use such as finding scorpions and minerals.
- Durable, high-quality LEDs: The 51 tenacious UV light LEDs have a lifespan of 15 years.
- Ultra-compact design: The pocket-size UV flashlight can be carried along to detect stains in your car or illuminate minerals, body art.
Setup and Battery Installation
The Vansky UV Flashlight requires 3 AA standard alkaline batteries (not included) for operation. Follow these steps for proper battery installation:
- Unscrew the back cover of the flashlight to access the battery compartment.
- Insert the 3 AA batteries into the battery holder. Ensure the negative (-) pole of each battery is placed toward the spring, following the anode and cathode direction markings.
- Install the battery holder into the flashlight battery compartment in the marked arrow direction.
- Tighten the back cover securely.
Important: Make sure the spring is aligned with the hole for proper contact. If the flashlight does not work after installation, check battery orientation and ensure the cover is fully tightened.

Figure 2: Step-by-step battery installation for the Vansky UV Flashlight.

Figure 3: Product dimensions and internal components of the Vansky UV Flashlight.
Operating Instructions
To operate the Vansky UV Flashlight, simply press the power button located on the side of the flashlight. Press once to turn on, and press again to turn off.
Optimal Usage Tips:
- For best results, use the UV flashlight in a dark or dimly lit environment. Ambient light can reduce the visibility of fluorescent substances.
- Hold the flashlight close to the surface you wish to inspect.
- Scan the area slowly to identify any glowing spots, which indicate the presence of UV-reactive materials.
Common Applications:
- Pet Urine Detection: Ideal for locating hidden pet stains on carpets, rugs, and upholstery.
- Scorpion Finding: Scorpions glow brightly under UV light, making them easy to spot in dark areas.
- Currency and Document Verification: Reveals security features on banknotes, passports, and driver's licenses.
- Hotel/Bathroom Cleanliness Inspection: Helps identify unseen residues and stains.
- Resin Curing: Can be used for curing UV-sensitive resins.
- Pest Detection: Useful for finding bed bugs and tomato hornworms.

Figure 4: Detecting pet stains on a carpet using the UV flashlight.

Figure 5: Inspecting bathroom cleanliness with the UV flashlight.

Figure 6: Identifying scorpions in dark environments using the UV flashlight.

Figure 7: Various applications including currency authentication, hotel inspection, body art, and UV resin curing.
Maintenance
To ensure the longevity and optimal performance of your Vansky UV Flashlight, follow these maintenance guidelines:
- Cleaning: Wipe the flashlight body with a soft, dry cloth. Do not use abrasive cleaners or immerse the flashlight in water.
- Battery Care: Remove batteries if the flashlight will not be used for an extended period to prevent battery leakage and corrosion.
- Storage: Store the flashlight in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your Vansky UV Flashlight, try the following troubleshooting steps:
- Flashlight not turning on:
- Check if the batteries are inserted correctly with the correct polarity.
- Ensure the back cover is fully tightened. A loose connection can prevent operation.
- Replace with fresh batteries.
- Dim light output:
- Batteries may be low. Replace them with new ones.
- Ensure the lens is clean and free from dirt or smudges.
Specifications
| Feature | Detail |
|---|---|
| Manufacturer | Vansky |
| Part Number | VS-FL03-V |
| Item Weight | 1.76 ounces |
| Product Dimensions | 5.9 x 2.16 x 2.16 inches |
| Item Model Number | UV flashlight |
| Batteries Required | 3 AA batteries (not included) |
| Material | Aluminum |
| Power Source | Battery Powered |
| Voltage | 4.5 Volts |
| Wattage | 5 watts |
| Type of Bulb | UV Light Black Light 395nm |
| Special Features | Pet Urine Detection, Spot Hard-to-find Scorpions, Cure UV Resin, Bathroom/Hotel Cleanliness Inspection |
| Usage | Pet Urine Detection, Spot Hard-to-find Scorpions, Cure UV Resin, Bathroom/Hotel Cleanliness Inspection, Find Bed Bug, Find Tomato Hornworms, Leak Detection, ID/Currency Verification, Uranium Glass Inspection, For Luminescence of Luminous Material, Cat Ringworm Detection, Cure Nail Polish |
Warranty
The Vansky UV Flashlight Black Light comes with a 1-year manufacturer's warranty. Please retain your proof of purchase for any warranty claims.
Support
For further assistance, product information, or to explore other Vansky products, please visit the official Vansky store:




