Key benefits Accurate detection: Reveal invisible repairs, counterfeit banknotes, hidden stains on antiques, and jewelry legitimacy quickly and reliably. Clear results: Advanced UV filtering and black mirror technology produce purer UV rays to expose flaws others miss. Safe, practical operation: Built-in eye protection and a simple one-button tail switch make inspections fast and low-risk. Ready when you need it: High-capacity lithium battery with USB fast charging and a clear red/green LED charging indicator. Features and how they solve problems Advanced UV technology: Multi-layer UV filtering combined with UV black mirror technology delivers a cleaner UV output that highlights repairs, glue marks, restoration work, and authenticity markers that are invisible under normal light. Safe-use protection: The flashlight includes a feature to limit excessive exposure, helping protect the eyes during inspection while maintaining detection accuracy. Fast, convenient power: Integrated high-capacity lithium battery plus a USB fast charging interface keeps the unit charged with minimal downtime. LED indicator shows red while charging and green when fully charged. Simple, adaptable control: One-button tail control with three brightness levels lets you switch modes quickly for close-up checks or broader surface scans. Handheld, portable design: Compact and easy to carry for field inspections or tabletop work. Practical applications Banknote verification: Quickly scan bills to reveal security fibers and UV security inks for rapid authenticity checks. Antique and restoration inspection: Detect overpainting, hidden repairs, or previous restorations on ceramics, paintings, and furniture. Jewelry and gemstone checks: Expose repairs, glue marks, or non-genuine treatments that are not visible under normal light. Performance summary Function: UV inspection flashlight for authenticity and flaw detection Technology: Multi-layer UV filtering and UV black mirror Power: High-capacity lithium battery with USB fast charging Indicators: LED turns red while charging, green when charging is complete Controls: One-button tail switch with 3-level light adjustment Design: Handheld, portable for field or tabletop use Safety: Built-in safe-use feature to reduce excessive eye exposure What to expect in use Turn on with the tail button and select the needed intensity. Sweep the area at a steady distance to reveal repairs, security markings, or hidden stains. Charge via the USB fast charging interface; monitor the LED indicator to know when charging is complete. This UV flashlight is designed for professionals and hobbyists who need a reliable, easy-to-use tool for detecting repairs, verifying banknote and antique authenticity, and checking jewelry legitimacy.