Innacurate, yes - meaningless, no. The circuit comprises tiny wires that would burn out with anything more than about 5 amps I would think. I could be killed by 240 volts. I think this more or less sets the limits - not very scientific I grant you, but the best I've got. The six halogens total 2400 watts and are burning very brightly (subjective and inaccurate I know, but good enough for these purposes). The wires are quite cool, so I estimate about 3 amps in the circuit. That means there should be about 800 volts - plenty to kill me. Alternatively, at max 100 volts (safe for me to touch), there should be 24 amps and the circuit will fry. Is there something wrong with my logic?