8 rgb leds (common cathode) serially, sun, meter..... outputs 7 volts dc.
rgb led like solar cells...... it works. :) face up the sun and tilt it 35-40 degrees.
by the way, has anyone tested whether the same effect occurs with power LEDs? eg <br>2 high power 10 watts LEDS in parallel 11 volts and 900 mA = equal 11 volts and 1800 mA <br>or <br>2 high power 5 watts LEDS in parallel 7 volts and 700 mA = equal 7 volts and 1400 mA
this is the first step of something great. <br>i know, only 20 mA current, but it will be improved. <br>1 rgb led 1 euro/unit. but will be cheaper in a near future. <br>please I would like to hear ideas for improving the amperage. <br>thanks for watching. god bless you all.
you can try using a black marker to color the bottom of the LED so that it attracts more light. Bye and good luck <br> <br>Francesco
pretty expensive though. LED's tend not to generate very much current at all, but this is an excellent demonstration of how you can use an LED as a light sensor as well.

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