
Lego Solar USB Charger Kit Instructions
Solder the Rectifying Diode to the Red wire
coming from the solar panel, the black line on
the diode faces away from panel. The diode
serves as a valve for electricity to travel in one
direction.
Cover the diode and wire with Heat
Shrink tubing. Use a heat gun or
soldering iron edge to shrink tubing over
the connection.
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