What is a UV Flashlight, and How Does It Work? A UV flashlight emits ultraviolet light, which can reveal fluorescent features embedded in genuine currency. These features are invisible under regular light but glow when exposed to UV light, providing an easy way to detect counterfeit notes. Wavelength Range: Typically, UV flashlights for currency verification operate at 365nm or 395nm wavelengths. Mechanism: Ultraviolet light interacts with specific inks, threads, or fibers embedded in the currency, causing them to fluoresce. What Features Should I Look for in a UV Flashlight for Currency Verification? Feature Importance Recommendation Wavelength Determines the flashlight’s ability [...]