jack your probably getting fed up with me but the help is appreciated.
I have scavenged a CEP10N4 but not sure if its wired properly. I had the Source going to the positive side of my LED's, Drain to the positive of power supply but it wouldnt turn on either with high or low Gate. If I switch Drain and Source it stayed on and wont go off.
It does work tho if I put the negative of my transistor arrays (ULN2803A, controlling LED negative) to the drain and the source to the negative of the power supply. High on the gate turns them on, low turns them off.
I thought I could use it on the positive or would that need P channel FET?