3.7 VOLT BATTERY POWERS 56 WATTS

[magnetman12003]

Hi gyula, the gutted led bulbs i'm using now are fine, it's just when using the 5 volt input with this coil, is not sufficient.
So i made made a new coil earlier today, will be testing soon.
Hi magnetman, i do not have any 12 volt bulbs to test at the moment, i have a ton of 120 volt led bulbs though.
Plus the fact i could not get the SCR to fire properly, though since i do not know what frequency or anything about how yours is functioning, what are we to compare it with.
The oscillator itself should not matter, unless yours is operating with super efficiency.
So for now, I'm working on at least getting an oscillator running on the 5 volt input and getting good light output, i can always try the SCR again or get the one you are using, maybe that's what is needed.
peace love light

Hi Sky Watcher,
I tried many times to get things going using 120 volt led bulbs.  My basement is absolutely full of them.  Some worked but very dim some pulsed and others did not work at all. Next my attention shifted to the 12 volt led bulbs.
Some worked by spinning a magnet near the air core coil to start.  The 12 volt bulbs I am using now burn brightly without using a magnet spin. They are cheaply made but very inexpensive.  All have aluminum heat fins but run cold to the touch in my setup.  Its very hard to tell the brightness level powered from either 12 volts verses the 5 volt USB wall charger.  Both look as bright.  Made in warm white and bright white.  I like the bright white.

[SkyWatcher123]

Hi magnetman, ok, thanks for the information.
The results are coming along with the 5 volt input, i'm just removing coil winds until i find the brightness, power level that is best.
I'm using 4 identical, gutted led bulbs at the moment and it was very easy to convert them to just direct led drive, without the inner circuitry that is, took around 5 minutes per bulb.
If these bulbs don't work out, then i will look into getting the 12 volt bulbs.
peace love light

[SkyWatcher123]

Hi all, ok, i was able to tweak the circuit to get equal brightness with the 5 volt usb charger.
Using 4.72 volts at .8 amps or 3.7 watts, the older model 6 watt ecosmart, non-modified led bulbs are brighter and drawing less power than the gutted led bulbs.
The older model ecosmart bulbs are somehow lower voltage bulbs, the puffer capacitor is sitting at around 46 volts, whereas with the gutted led bulbs, it sits around 96 volts.
So, this leads me to believe that the 12 volt led bulbs will probably work well with this type of flyback circuit, just as you are showing magnetman.
Will have to get at least 4 of those.
peace love light

[magnetman12003]

Hi magnetman, ok, thanks for the information.
The results are coming along with the 5 volt input, i'm just removing coil winds until i find the brightness, power level that is best.
I'm using 4 identical, gutted led bulbs at the moment and it was very easy to convert them to just direct led drive, without the inner circuitry that is, took around 5 minutes per bulb.
If these bulbs don't work out, then i will look into getting the 12 volt bulbs.
peace love light
[/quote

You want to use these lamps and they are selling from a USA dealer.      http://www.ebay.com/itm/New-5-x-12V-High-Power-LED-Lamp-Bulb-E27-E26-7W-White-Light-Energy-Saving-/252019335458?hash=item3aad85e122:g:JMAAAOSwjVVVsILY

[SkyWatcher123]

Hi magnetman, thanks for the information.
I ordered these warm white ones just now, i like the warmer color.
http://www.ebay.com/itm/5x-Super-Bright-High-Power-7W-12V-E27-Home-LED-Bulb-RV-Lights-Warm-White-E26-M-/322216141628?hash=item4b0594233c:g:jIoAAOSwimdXoxPM&vxp=mtr
One thing i have to be sure not to do when i get these, is not have the capacitor charged when i connect the bulbs, that is without some type of scr switch in place, because last night i popped the last low voltage bulb i had been using for a night light. 
I wonder what the actual lumens rating is on these bulbs at 12 volts direct, because the data on the website seems like it was taken from different sources and contradictory.
peace love light