flashlight kits for sale, brand-new and used.

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"HUGE FIBER OPTIC MODEL LIGHTING SALE"!! . .

This circuit boosts the voltage from a flat AA battery, using up the last of the power in the battery, which normally would be unusable. The completed torch is quite bright, comparable to the LED Torch built into a smartphone. Complete build instructions can be found here Theory of operation is here You need a soldering iron, solder, and wire cutters to be able to build this project.

This circuit boosts the voltage from a flat AA battery, using up the last of the power in the battery, which normally would be unusable. The completed torch is quite bright, comparable to the LED Torch built into a smartphone. This version comes with extra battery holders, more wire, and an extra larger Toroid ferrite (For making a better transformer with more turns).

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