The 10 Cent Flashlight
thingiverse
This handy little flashlight is ideal for all outdoor activities. Its incredibly simple and straightforward design makes it perfect for a personal project or class assignment. Two bright 5mm LEDs are easily installed at the front of the device. By connecting them in series and then adding a high-precision 120-240 ohm resistor, they remain safely in operation. The terminals are cleverly disguised as two screws that allow secure connections. Once the powerful 9V battery is inserted into its dedicated compartment in the rear, the cap is secured with ease. Finally, by twisting the rear section clockwise, the flashlight comes to life and is ready for immediate use.
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