It looks like a neon sign, but it's actually lighted by LED. There is no neon in the tubes. It's hard to tell the difference up close, and nearly impossible to tell from five feet away. It's a more energy efficient, and less likely to break, sign for your window or the wall of your home bar.
The power supply of the version is for the standard European 220v, and the plug is a standard European plug. The US 120v version is available here.