Joule Thief LED Flashlight (Free Light)
This is a Joule Thief Flashlight. I simply modified a cheap 5 super bright LED flashlight that ran on 3 AA batteries by gutting it and using a simple Joule thief circuit which now…
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For the term "super bright joule thief circuit".
Earth Battery Joule Thief Lights 7 LEDs
This is my earth battery powering a joule thief circuit and running 7 ultra bright, 10mm, 28500 MCD LEDs. I misspoke myself in the last video, these are 28500 MCD not 28000 like I…
Earth Battery Joule Thief LEDs Experiments
This is my new and improved earth battery running 4 ultra bright 10mm 28000 MCD LEDs. I am using a standard Joule Thief circuit wound (bifilar) on a ferrite toroid this time. An N3904…