How to Rewind Transformer for Joule thief

[@abdulazeezyusuf7607]

You are Weldon. God bless you. How many minutes or hours will the battery last?

[@PnoyElectro]

Defends on your battery capacity

[@overunityinventor]

try joule thief with solar cell, it makes solar cell generate more current on same luminosity.

[@marvinstaana1802]

Ano po course nyo? Gusto ko kasi matuto ng ganyan

[@overunityinventor]

did u try joule theif with solar cell?