Right. But when it comes to the strobing transistor, I'm using a standalone transistor. I haven't had issue with the 2803, like I said it was working with the 4017. It's when I introduced the stand alone transistor to switch the LEDs on or off, current leakage became an issue. Again, I'll be posing a sketch Thanks!Correction. You're using integrated Darlingtons designed to be driven from 3.3V or 5V logic without external resistors.