> Yes, exactly.. > I have forgotten to add that 5 rgb leds are parelled and > there exist 3 pnp > transistor to handle max 150mA current from 24V power supply. I don't think I have got the full picture. Can you give the total circuit, preferrably as picture (instead of words)? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist