Here is the "How to make" video series on this Lynx Joule Lamp. Total cost is about $10 per lamp. It will run on 3-18 volts.
It took me about 3 hours to make including camera work. It will run anywhere from very dim on 3 volts to quite bright on 12-18 volts. I don't note any radio interference because this circuit is a closed circuit and not a Tesla Coil with its open end. The bulb is grounded back to the negative battery terminal.
I even goofed up my wiring (again) and needed to swap the primary end and start, and found a broken solder joint. If you are careful, it will light up the first try.
Great for camping, emergencies, cabins, boats....
