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Chuck, I am a little ignorant when it comes to electronics. Most of this is new to me. My F7A 2 light has a 5mm and a 4 or 4.5 mm hole. I have purchased 12 volt LED's in the past for automotive projects. I don't see any 5mm fiber optic filament. That is why I thought about using a 12 volt 5mm LED. I don't know much about electronic circuits, resistors, rectifiers, etc. Wouldn't a 12 volt LED be kind of Plug-n-Play? Do you use a resistor with the LED because the LED you are using won't take track power? Do you still use the factory supplied headlight lens? Also, that circuit you refer to (mrollins) scares people like me that have never taken the dive into electronics. I don't think I have steady enough hands to mess with those tiny parts. Thanks for your tips!! I am always happy to learn. Tim
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