The UV LED (or "UltraViolet Light-Emitting Diode") Bit sends out a special kind of light. It looks purple to the eye, but it has some special abilities, like making white fabrics and certain inks glow in the dark. If you have a pen that writes in UV-sensitive ink, you can use it to reveal secret messages.
Check out our Tips + Tricks for more ideas on using the UV LED.
Dimensions (mm):20.0(H) x 77.0(W) x 149.0(D)
Product Weight:0.00 lbs (0.0 kg)
Circuit Diagram - PDF