Diy Joule thief from broken CFL -Recycling-

parts list :

1. a piece of magnetic wire approx 60 cm
2. ferrite toroid
3. NPN transistor 
4. 1 Kohm Resistor
5. 1.5v bat "empty one"
6. Led

watch this video to know how to do it yourself

any Question ?

Feel free to ask