Joule Thief Flashlight

A cool LED flashlight with an ultra long battery life.
Steps
  1. Overview
  2. Step 1: Winding The Coil
  3. Step 2: Sanding, Taping, and Cutting
  4. Step 3: Soldering The Circuit
  5. Step 4: More Tape!
  6. Troubleshooting

Instruction Attachments

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