- Trinec, Czech Republic
- GBP 3.99
- Jan 29th
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.