Flarelight, moonlight, Tesla-light, some Wizard of Ass flame in the distance, and either the Tesla interruptor or some floodlights all illuminate the surreal scene as a lovely "L" and "O" are smoked by the Coil.
It looks like there's a good distance between the Coil and the audience (and me), but it's an artifact of the wide-angle lens - you could almost reach out and touch those plasma streamers!