Circuits are made Public Domain by Publisher
Ultra Efficient LED Light Runs on 1AA Charges 2aaa or 2AA
Modified Joule Thief Circuit Tuned to Run, Produces Light,
Not sure for how many Days or Weeks....
Circuits Provided use Either a NPN or PNP Transistor and a standard Bifile Coil for
the Joule Thief. A Third Coil provides Energy for the LED with virtually NO Current Drain on the J.T. Circuit.