modified 11 years ago

4 or more Dimmable LEDs

01:24:39

Here is circuit where you can control the current through four LEDs from 0 to about 19 mA  you can extend this circuit just add more PNP transistors and LEDs the LEDs go from totally off to full brightness as you adjust the variable resistor % 0 to %100 if are going to build this circuit each transistor power rating has to be greater then 300 mW 

published 11 years ago

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