Actually I may be able to shed some more light on the situation. Try building this:
Charged MFSU -> Transform power down to LV through two transformers -> Fiber line -> 35 luminators.
In my case, the luminators are spread out over the roof of a big room I'm building, but I don't think shape matters much. Connect the output of the transformer to the main line last so that all the luminators get power at the same time.
Expected: All the lights should get power, and turn on. An eu-meter will show you massive power being transmitted for a few seconds to fill up the internal luminator capacitor, followed quickly by a low but relatively constant flow of power to keep the luminators topped off.
Actual: the first few closest to the transformer get their charge and the ones behind start blinking. If you disconnect the line halfway down or so, (starting where the lights blink) and wait for it to stabilize and reconnect, it'll charge up the next group. An eu meter *will* show the high current to get the lights charged, and then a low but constant *not pulsing* current to keep them topped off... but see below.
What isn't happening: If you leave the line connected, eventually the internal capacitor on the luminator runs dry, and they shut off, and then go back to blinking like mad. The luminator is *not* charging itself while on! It *appears* to draw a very low current while on, but this could be a glitch with the eu-meter. I just watched half my roof's lights go out, while plugged into a live MFSU. There was power aplenty.
If it's coded the same way the other ic2 machines are, shouldn't it be able to request an eu packet once it has enough room for it in its internal storage? I do not know how a transformer outputting at 32eu is suddenly only sending 2-5 eu at a rather steady rate, and not pulses of 32 like it would to any other ic2 machine.
Edit: Here's some version info for you:
Minecraft 1.2.3
Forge: 1.4.1.59
IC2: 1.81