Solar Panel Voltage Output

What can i power up with 2 of these solar panels ???????????????/ PLZ HELP MEEEEEEE !!!!!!!!!~~~~~~~~~~~?
i have 2 solar panels with these specif. :
Size: 2.5″L x 1.5″W
Output voltage: 3.0V@22mA .
Are they any usefull ?what are some things that i can power up with them ? like how many LEDs ? or flash lights ? or anything esle ? i was thinking of putting them on the top of my RC car plus batteries…~~~
thanks a lot !
If you hook the solar panels to an rc car be careful they are delicate. and for anything you would need a miniaturized transformer to the heat into electricity and then of course copper wires to transfer the thermal energy and electricity into something by plugging or hooking where batteries would be. And be careful because sometimes it can fry the light bulb if you don’t use the right amount or size of power source for something.
Testing Solar Panel Voltage w/ Arduino
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