[Yannick] got a hold of a 100W LED diode recently, and like any self-respecting hacker, he just had to turn it into a ridiculously over powered flash light. The tricky thing about these diodes is t… ...

You can get 12v, 8v, 100v, or whatever between capacitor leads, depending on the internal resistance of the fan. It’s just a 2 resistor divider. The bulb and the fan resistances.