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For the term "joule thief circuits 1 watt white led without torr".

Joule Thief Lights 300 LEDs On Single AA Battery!!

My modified Fuji AA Joule Thief circuit lighting 300 LEDs! Each LED requires 3.5 volts to light. I am still using the old AA battery that you have seen in all of my other videos. For more information, go to Overunitydotcom in my Joule Thief topic. Thanks.

Amazing Joule Thief Lights 200 LEDs On A Single AA Battery!!

Avast!!!! Lighting 200 LEDs on a single AA battery using the modified Fuji Joule Thief circuit. The battery, which is old and nearly dead, will not even light 1 single led by itself. A new AA battery will not light one of these leds alone. More to come…

Two Joule Pirates In Parallel (Joule Thieves)

This is two Joule Pirates (Joule Thieves) wired in parallel running off of one AA battery powering a 48″ tube. (40 watts) The funny thing is that the tube is brighter with just one circuit turned on than with my single circuit experiments from before. …