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UPDATE

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I found my photo-resistor, In darkness its around 100K Ohms, in light its around 4K Ohms. In the Circuit picture that I have attached the 104K Ohm resistor is the photo-resistor. Its a Simple circuit made with spare parts I had kicking around. The little black base is made from a power supply for a laptop that I had gutted for powering a cap bank that I haven't finished. And yes the EL-Panel is duct-taped to the back of the mirror.