For many years I have been looking for this type of Tesla Coil or DIY instructions for building one. As a glassblower, I have been aware of stand alone plasma "neon" sculptures but to energize them one needs a contactless high voltage power supply. This unit is exactly what I have been looking for and came very well packaged. The build quality is very solid and the included AC power adapter appears to be very nice with an ON OFF switch in line. The unit has a LED indicating when it is powered ON. Any fluorescent, plasma ball, or neon tube or for that matter an incandescent light bulb illuminates nicely when brought near the plate. I am excited to make my own evacuated blown glass items to display with this Tesla Coil.