Dr Ronald Stiffler SEC technology

[erfandl]

Well, then the 720 mA is the problem: it can happen when the isolation between the plates of the trimmer capacitor
is damaged and there is a short circuit somewhere between the plates.  Remove the battery i.e. switch off the oscillator
and with your Ohm meter check resistance between the two pins of the trimmer capacitor.  IF the trimmer capacitor or
the 22 pF itself is conducting as quasi a piece of wire, then chokes L1 and L3 can get hot (but the L2 choke in base
is not hot, right?).   Maybe the circuit board itself has become conductive somewhere?
It is interesting the oscillator is able to work.  Do you use the 3.7V battery?

thanks for reply. yeah L1 and L3 is hot and L2 is cold. I using 3.7V battery. I checked the capacitors with ohm meter and the DMM nothing show any value so capacitors is OK.
I connect the negative of the LED to negative power rail because without this 12 volt LED dosn't turn on. when I removed the connection between negative of 12 volt LED and negative power rail, the chokes dosn't get hot.

[gyulasun]

Well, then you changed the circuit, obviously in a quest for making the 12V LED operate with a certain brightness.

You may wish to do the followings: use two white LEDs (the type you have in the base circuit), instead of the 12V LED
and try to find capacitor values (in parallel with the trimmer cap) which show an increase in the brightness for the 2 LEDs.
Then continue with 3 and or 4 white LEDs in series and again use different capacitor values to increase brightness.
IT is possible you reach to a limit and no more increase in brightness is achieved. Then try to obtain a single LED which
has 1 W or 2 or 3 W power and try to optimize for maximum brightness.

[itsu]

I found the logic circuit of my led lamp, see picture.
The backside reads:  Y&M-TG-5-9W  so probably indeed a 9W led lamp.

Itsu

[AlienGrey]

I found the logic circuit of my led lamp, see picture.
The backside reads:  Y&M-TG-5-9W  so probably indeed a 9W led lamp.

Itsu

it's not necessarily the power through the leds, leds emit UV witch is used to vibrate the phosphor
it is really down to it's processing particle size, and quantity are related to quality of the light.
By the way you do know what Phosphor is made from 'Piss' 
AG

[seychelles]

I THOUGHT IT WAS MADE FROM SEA BIRD SHIT.