tengyy
Member level 1
![exp-lantion.JPG exp-lantion.JPG](https://www.edaboard.com/data/attachments/52/52784-4f6f223d69473acb92af2b707d137b27.jpg)
This is a solar energy charger and have a PNP 2N5401 transistor
can anyone explain to me about how this circuit can work ? and the LED can light up when battery is implement.
https://www.onsemi.com/pub_link/Collateral/2N5401-D.PDF
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