1. Introduction
Thank you for choosing the DARKBEAM DKL-V4 365nm Mini UV Flashlight. This compact and powerful ultraviolet light is designed for a variety of detection and curing applications. Its 365nm wavelength, combined with a specialized black filter lens, provides a pure UV light output, making invisible substances visible. This manual provides essential information for the safe and effective use of your device.
2. Important Safety Information
- WARNING: DO NOT LOOK DIRECTLY AT THE UV LIGHT. Prolonged exposure can cause eye damage.
- Keep out of reach of children.
- Do not disassemble the flashlight. Unauthorized modifications can lead to malfunction or injury.
- Avoid exposing the flashlight to extreme temperatures or direct sunlight for extended periods.
- This product is not water-resistant. Avoid contact with water or high humidity.
3. Package Contents
Ensure all items are present upon unboxing:
- DARKBEAM DKL-V4 365nm Mini UV Flashlight
- USB Charging Cable
4. Product Overview
The DARKBEAM DKL-V4 is a compact UV flashlight featuring a durable aluminum body and a specialized black filter lens for optimal 365nm UV output.
5. Setup: Charging the Device
The DKL-V4 UV flashlight is powered by a built-in rechargeable lithium-ion battery. Before first use, or when the light output diminishes, charge the device using the provided USB cable.
- Locate the USB charging port on the flashlight.
- Connect the small end of the USB cable to the flashlight's charging port.
- Connect the larger end of the USB cable to a compatible USB power source (e.g., computer USB port, power bank, USB wall adapter with a maximum output of 5V/2A).
- The charging indicator light will illuminate red during charging.
- Once fully charged (approximately 1 hour), the indicator light will turn green.
- Disconnect the USB cable from the flashlight and power source.
The flashlight can be used continuously for approximately 1 hour on a full charge.
6. Operating Instructions
The DKL-V4 UV flashlight features a simple single-button operation.
- To turn the flashlight ON, press the power button located at the tail end of the device.
- To turn the flashlight OFF, press the power button again.
The 365nm UV light is less visible to the naked eye compared to 395nm UV lights. It will appear as a subtle blue-violet glow. Its effectiveness is best observed when irradiating items containing fluorescent agents or anti-counterfeiting codes, which will then glow brightly.
7. Recommended Applications
The DARKBEAM DKL-V4 UV Flashlight is a versatile tool for various detection and inspection tasks:
- Pet Urine and Stain Detection: Effectively reveals dried pet urine, stains, and other invisible organic residues on carpets, furniture, and other surfaces.
- Currency and Document Verification: Authenticates banknotes, passports, and other official documents by revealing hidden security features.
- Hotel Room Inspection: Identifies unsanitary areas, stains, and cleanliness issues in hotel rooms.
- Mineral Finding: Useful for identifying fluorescent minerals.
- Uranium Glass Detection: Causes uranium glass to glow brightly, distinguishing it from regular glass.
- Resin Curing: Accelerates the curing process of UV-reactive adhesives, resins, and gel nails.
- Leak Detection: Can be used with UV dye to detect leaks in HVAC systems or automotive fluids.
- Scorpion Hunting: Scorpions fluoresce under UV light, making them easier to spot in dark environments.
8. Maintenance
- Clean the flashlight body with a soft, dry cloth.
- Keep the lens clean for optimal performance. Use a lens cleaning cloth if necessary.
- Store the flashlight in a cool, dry place away from direct sunlight and moisture.
- Charge the battery regularly, even if not in use, to maintain battery health.
9. Troubleshooting
- Flashlight does not turn on:
- Ensure the battery is charged. Connect the flashlight to a USB power source and check if the charging indicator light illuminates.
- UV light appears dim or weak:
- The battery may be low. Recharge the flashlight. Also, ensure the lens is clean and free from obstructions.
- Charging indicator does not light up:
- Check the USB cable and power source connections. Try a different USB cable or power adapter.
10. Specifications
| Feature | Detail |
|---|---|
| Model | DKL-V4 |
| Brand | DARKBEAM |
| Light Source Type | Ultraviolet LED |
| UV Wavelength | 365nm |
| Brightness | 1300 milliwatts (radiant intensity) |
| Power Source | Built-in Rechargeable Lithium Ion Battery |
| Charging Port | USB (Type-C compatible cable included) |
| Voltage | 5 Volts (charging input) |
| Light Source Wattage | 10 watts |
| Material | Aluminum |
| Product Dimensions | 3.54"D x 0.85"W x 0.85"H |
| Item Weight | 54.4 Grams (1.92 ounces) |
| Water Resistance Level | Not Water Resistant |
11. Warranty and Support
DARKBEAM stands behind the quality of its products. The DKL-V4 UV Flashlight comes with a limited warranty, including a 180-Day Money Back Guarantee and a One Year Guarantee.
For warranty claims or any questions regarding your product, please contact customer support. You can typically find contact information on the product's retail page or by searching for 'DARKBEAM customer support' online.
