Oscillator Powering 6 Modified Led bulbs

[magnetman12003]

Hi all, was posting about this particular oscillator light in another thread, felt it was good enough for its own thread.
It's the basic joule thief style circuit, using gutted 12 volt led bulbs rated at 7 watts from ebay.
The bulbs did contain a boost circuit inside them, to boost from 12 volts to around 21-24 volts dc, of course i removed that circuit from each bulb, for added efficiency.
The setup really is putting out a very good amount of light.
I was previously using a small number of turns on the ferrite c-core, then used many more coil layers and increased efficiency even further.
When looking at a Phillips 40 watt equivalent led bulb in a nearby can light, it is not much brighter than one of the 6000k pure white led bulbs.
Here is a drawing and some pics.
peace love light

Regarding the 11+ volts and 330 milliamps you posted on your 12 volt drawing-- Was that reading taken between your 12 volt power supply output and your powered setup or was it taken across one of your lit bulbs on the setup output??

[SkyWatcher123]

Hi magnetman, the 11.8 volts was taken at the power supply output, NOT the capacitor.
The capacitor voltage was a little above 20 volts i think.
peace love light

[magnetman12003]

Hi magnetman, the 11.8 volts was taken at the power supply output, NOT the capacitor.
The capacitor voltage was a little above 20 volts i think.
peace love light
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Does moving the ferrite core in and out of the coil make a difference in the brightness of the bulbs or adjusting the resistor  value on the base of the transistor in the 12 volt setup??  Which of the two will effect bulb output brightness the most?

[SkyWatcher123]

Hi magnetman, moving the ferrite core does affect the brightness.
And of course, different base resistor values will vary the brightness.
The base resistor affects brightness the most.
peace love light

[magnetman12003]

Hi magnetman, moving the ferrite core does affect the brightness.
And of course, different base resistor values will vary the brightness.
The base resistor affects brightness the most.
peace love light

I am having a hard time understanding just why almost the same voltage 12 volts and very low current will light up the bulbs very brightly.  As compared to a direct connection to the power source which puts out 12 volts and much current.  Can you explain what's happening??