I have now added a AC to DC diode bridge which converts AC to DC. Then i added a Joule Theif to the diode bridge, which is a very simple circuit that can amplify input power (the Dc voltage from the diode bridge). http://www.youtube.com/watch?v=gTAqGKt64WM
This allows the LED to be lit when its father away from the coil, because the voltage going to the LED is higher. It is now able to power DC devices.