Verify Your Goldbacks in Seconds
Starting in 2025, every Goldback denomination is minted with UV-reactive ink as a built-in security feature. This penlight is how you check it. Shine its 365nm UV light on the back of a 2025 or newer Goldback and hidden text appears, the note’s numerical denomination and AU, the chemical symbol for gold, in an alternating pattern. It is a fast, simple way to confirm a Goldback is the real thing.
How to Use It
Turn the pen on and run its light across your Goldback. Watch for the hidden UV-reactive text to glow into view. On the first 2025 notes, that security text appears on the back. On newer releases it appears on the front. So scan both sides to be sure you find it. Once you see it, the note is confirmed as legitimate, and it takes about a second per note.
Packaging May Vary
Depending on our current stock, your penlight may arrive in Goldback-branded packaging or in the original manufacturer packaging, the WUBEN E19UV. It is the exact same 365nm UV penlight either way, the one made to reveal the Goldback security features. Only the box is different.
Specifications
A compact 365nm UV penlight with selectable output, a black glass lens, and a common battery type. See the Specifications tab for the full breakdown.
Goldback Penlight FAQ
Which Goldbacks does this work on?
Goldbacks minted in 2025 and later, when Goldback began adding UV-reactive ink to every denomination. Shine the light across both sides of a note to reveal the hidden security text.
What packaging will mine come in?
It may be Goldback-branded or the original manufacturer packaging (the WUBEN E19UV), depending on stock. The penlight inside is the same either way.
What wavelength is it?
365nm UV, the wavelength that reveals the Goldback security features.
What will I see when I scan a note?
Hidden UV-reactive text: the note’s denomination and AU, the chemical symbol for gold, in an alternating pattern. On the earliest 2025 notes it appears on the back, and on newer notes it appears on the front, so check both sides.
Add the Goldback UV Authenticator Penlight and verify your notes in seconds.




