As well, there is the curious action of removing the so-called 'insulators' and placing them right out of frame. If there was nothing to see, then why do this when everything else stayed visible?
He has another video where he shows the insulator very detailed and re-assembles the resonator, too:
Interesting: At 1:47 he shows that the voltage changes when he moves it. This might be an indication for some RF trick. The insulator looks like just some rubber.
Then there is the question as to what could be in the LED globe. That is a HUGE space.
Right. And it looks like mains powered LED globe, and curiously in the end he doesn't show it powered from mains, only the other lamp?
So how it could be done: inside the bulb is a circuit and a battery, which measures the capacitance. It turns on the bulb, if it can measure a capacitance greater some value, and brighter if there is more capacitance, when more of the resonators are connected in parallel. And the multimeter is rigged to show the right values volt and milliamps in DC mode.
But if the multimeter is not rigged, how could he do it?