These things are flippin' sweet! I've been looking for a good way to illuminate the face of my Trace Elliot properly, and I thought about cold cathode, but they just weren't appealing to me, due to the high-voltage power supply and they can be prone to break in road gear. So I discovered UV LED's from a kit for my car's air conditioner to find leaks (UV reactive dye). It came with a UV LED pen light, and I have been having a blast with this tiny convenient black light. So I am going to have to order some of these for all kinds of uses. I'll get a pic of my Trace rig with the UV LED tomorrow, probably.