led flashlight diagram 545i

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ALUMINUM -2AA.

https://en.wikipedia.org/wiki/Led

https://en.wikipedia.org/wiki/Led_Zeppelin

https://en.wikipedia.org/wiki/LED_lamp

https://en.wikipedia.org/wiki/Led_Zeppelin_II

https://en.wikipedia.org/wiki/Led_Zeppelin_IV

Mini Led Flashlight with LT1073 IC – ElectroSchematics.com

High power LED flashlight circuit with 1.5V AA battery

How Does A Flashlight Work | Energizer