| 1 2 3 4 5 | Better night Frisbee golf Now we need an article on building a circuit to power 2 3.2v led from a 3.7v capacitor AND a circuit to charge the capacitor from 5v USB wall charger. If a 3.7v 80mA capacitor will power the 2 led brightly for 3 hours what could be soldiered atop it in parallel to provide 8 hours of bright run time? Why? They sell these illuminating fiber optic tunes online and we want ours to have a longer run time. |