KidWind Sound and Light Board, simple power output board that comes standard with the MINI Wind Turbine, great way to demonstrate power output from small electrical devices, needs at least 2 V to start working
KidWind Power Output Board, includes a visual voltmeter, LEDs, resistors, a capacitor, and a sound generator, This device makes it very easy to demonstrate and measure the power output of your small wind turbines or solar panels.