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Ferrite, the joule thief

This was one of my joule thiefs I made. Ferrite will come on at night and light the way so i don't trip and bump. Power is supplied by a dying battery that gets a rest during the day. Other Joule Thiefs I have made.

4 comments

Mar 25, 2012. 9:41 PMcqaigy says:

Must be hundreds of ways to do this. I love your artistic addition to the genre. Well done.

Sep 6, 2011. 7:01 PMfobot says:

I plugged 11 leds into a 9V battery 3 weeks ago and its still on. Can you explain why this is special?

Jan 7, 2012. 12:00 PMlden hartog says:

its because joule thiefs have the capabilities of powering a 3-4.5 volt led off of 1.5 all the way down to .3 volts. works great for the batteries just normally thrown away. i made a couple and they work fantastic, made of only like 4 parts :D

Nov 23, 2011. 9:57 PMloki2012 says:

Bad day fobot? It is special because he built it. No claims to be the best or most efficient. Just a night light running on a battery, built into art.