I think it was a LED lamp like this.

So the Tesla coil radiates energy into space and part of this energy then is captured by the LED lamp. Can't see any magic here.

When I tune my radio to a radio station then does that radio station consume more power because I tuned in to it?

No but i bet the banksters would want to tax you for it if they could, Also you can get low power LED lamps at the pound dollar shops if you look.

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In the classical electromagnetic model that circuit is closed by pF stray capacitance.  That's why it does not work with HV DC and pulses are necessary.

   I also think that there is stray AC capacitance in some of Nelson's tests, especially when he connects the driver's ground to a grid connected ground, like the refrigerator, or signal generator negative post.  There's a couple of volts, and a couple of mAs there, which can dimly light an led bulb, and even more than that, like a CFL, if it's also connected to a driver circuit, like his.
  Main thing is to not use grid grounded devices, for these test. And only batteries, and real Earth ground connections. While at the same time turning the breakers OFF, to assure of having no ground loops, also.

Maybe, this is right wire direction.

This wire correction can't possibly work. It has to energize the coils and bulb, not put ground to both sides of it.  Follow the circuit correction wiring to see what I am talking about (Looking at your schematic update, If you put the wire to the grounded side of the fwbr, it carries ground from the fwbr through the coils, through the bulb, then back to ground.) Originally, the voltage would have ended up being 220v  leading to L8 and then in series through L7, then through the bulb and then to ground which would energize the bulb and coils.. The bulb is grounded already and doesn't need both sides of the coils grounded otherwise the energy wouldn't make it to the bulb (unless you have come up with some new magical way of collecting energy that nobody knows of!) To make this circuit function correctly, we need to have a frequency interaction to provide assistance from the modulation of both the 50hz pulse train which is inserted into the connection between L1 and L2 to provide the positive means for the coils to energize, and the negative pulse from the function generator to create an energy of it's own. This is used in the beginning of the circuit, then has to be used again and matched out of phase at the end of the circuit to create a difference in potential, so we could utilize this "difference" to do the work. It actually is a helper circuit that eliminates the additional load from the inverter and allows the mix of the two frequencies to do the work at the bulb. I do feel that both sides of the circuit will need spark gaps.. One before L4 and another between the connection from the inverter and L1/L2 coils otherwise the modulation and/or the assistance circuit won't be of any assistance to the output. The modulation could always be done in other ways, such as by applying an adhesive foil half way covering a toroid for one frequency, and the other half for another frequency, then, third from the input. Some of these circuits function by the addition of multiple frequencies, some are carrier frequencies and those frequencies output naturally their harmonics all the way up to the 21st harmonic if the amplification is strong enough or the energy input is powerful enough. When we introduce rf carrier frequencies, they multiply by inducing energy from these frequencies via the Schumann resonances through all of the coils used. We tune into these frequencies, and once we find resonance for the right frequency, the energy starts to flow. We may not get the most out of this circuit, however, if we spend the time to find tuning capacitors of the correct sizes, we could tune into a pretty substantial amount of power for our output. When this happens, there are not only one or two frequencies, there are hundreds if not thousands of them flowing through the circuit simultaneously. They all have a specific amount of energy drawn into them, all dependent upon the tuning and the input power driven to the circuit. If the power is small, the output is small. If the power is substantial, depending upon the carrier frequencies modulated will affect the output with different results, hpowever, you will have much luck if you input a substantial power and voltage to the circuit, then the energy drawn in will be matched between all the diffrent frequencies modulated. The helper circuit (at the function generator) may only input 3 or 4 watts of energy and hardly any voltage, but, it allows energy magnification to happen. This energy on a scope look like a bunch of wavy noise, but it will do work just as long as we use a bonified input with some ass behind it, such as the inverter.

 

Why only one bulb? He should connect a wooden board full of 100W incandescent light bulbs to his spade, maybe he could borrow one from Kapanadze.

 
It is comments like this from various people here that make me think I am just wasting my time... 
This sort of thing happens way too often here unfortunately....

      

In the classical electromagnetic model that circuit is closed by pF stray capacitance.  That's why it does not work with HV DC and pulses are necessary.

When we have a signal in the 25kHz range I would think picofarads would be negligible capacitance.

What I find curious is the waveform.  Take an AC sine wave and rectify it with a full wave bridge rectifier--we get those lazy humps.  Now invert this potential and we see spikes.

Could this be important?

I'll bet the side you connect the earth ground to matters considerably.

 
  Main thing is to not use grid grounded devices, for these test. And only batteries, and real Earth ground connections. While at the same time turning the breakers OFF, to assure of having no ground loops, also.

Yes Nick and its been said many times! Otherwise we can end up with the situation shown by Terbo.

Nelson: in some of your videos you are using an imhotep relay to produce radiant energy. In your latest device are you completely solid state?

Hi King21

Yes i already managed to make completely solide state months ago . That videos with relay were very productive until a managed a way to deal without them . But is a good way to make experiments without the frustration of burn several components like usual happens .
And is not a imhotep relay actually i use two relays  ; will you understand why ...