Make a shake flashlight out of a cardboard tube

Intro and Materials

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cardboard shake flashlight

credit: chandrahas aroori

1 of 6

Shake flashlights are nifty things to have around in case of a power outage or while out camping. A few shakes and you've got light without having to worry about whether you've recently replaced the double A's. For this project, courtesy of Instructables user Chandrahas Aroori, you'll need the following:

1. Cardboard tube
2. 5 diodes
3. Magnet wire
4. Foam
5. LED
6. Capacitor
7. Wire
8. Convex lens
9. Hot glue

If a joule thief is wanted then:
10. 2N3904 Transistor or equivalent
11. 1k Resistor (Brown-Black-Red)
12. Toroid Bead