This is a cool usb solar project to charge your cell phone .

<p>This usb output 5 volt but how much need to input. I have one input 100-220 V i think this wont work.</p>
but the car charger allready has a voltage regulator for 5 volts the no need for the one you have added

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Bio: i am a inventor.
More by ewokeric1:red dot scope solar panel with usb cell phone window mount mold 
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