A Maker classic, the “Joule Thief” circuit gives your dead AA batteries new life. This kit will provide you with everything you need to give those dead batteries a second life powering a 3D printed flashlight. Download the provided 3D models, print them on your 3D printer, and assemble. The provided kit includes a professionally made PCB with through-hole components for easy soldering. Some beginner level soldering skills are required. Enjoy!