Black Flashlight for Detecting Invisible Ink

Featuring a 395nm wavelength, this flashlight reveals hidden marks made by dried invisible UV inks on documents, hands, skin, or fabric. Once the UV ink dries, it leaves no visible trace, but when illuminated with this flashlight, the marks become apparent. This is particularly useful for transfers that require registration marks to align fabric or for bars using invisible stamps on guests.

Constructed from top-quality, waterproof, and impact-resistant aluminum alloy, this robust UV flashlight withstands harsh conditions and rough use, ensuring lasting performance. Its 12 specialized LED bulbs provide 30% more brightness than competing flashlights, enabling clear and accurate visibility in low-light settings (batteries not included). Measuring a compact 3.7" x 1.13", this lightweight flashlight is easy to transport for various outdoor activities too.

Additionally, this versatile UV flashlight can verify the authenticity of important documents printed or marked with BCH invisible printing ink as well, making it an essential tool for professionals and individuals alike.