Hoping someone can help me out here. I bought one of the cheap VVPS's from China and the Reg vs non Reg thread. I then bought a compatible mono tattoo cable and soldered on a 5.5/2.1 end for power. Now, I bought one of those LED power cords from Dave, so I could tell when the dog was on/off in use with a WeMo. The LED shines blue when the power is on and when in use with the UD wallwort. However, when I use this same LED cable (it's an extension patch cable that you add to the end of your UD wallwort power supply) with the VVPS, the LED shines red. The operations of the unit seem fine on the UD when in use with the VVPS and my DMM is broken for some reason, so I can't test. Don't really understand voltage even if it wasn't. I'm concerned I"ll damage my lovely UD if I continue to use the VVPS. It's as if the LED being red on the little power extension cable was telling me I wired it wrong...which I didn't... or there's a short.... which there doesn't appear to be. Any ideas, or was my explanation awful? Too many acronyms?