I'm not sure whats wrong..most likely its how I wired it up Panasonic AQV252=A0 http://search.digikey.com/us/en/products/AQV252G/255-17= 91-5-ND/571631 5V system, using a 750ohm resistor to drive the LED in it, and I have verif= ied the signal is driving on and off I'm switching 12VDC @1.2A inductive load (solenoid) pins 4/6 are output?=A0 pin 5 is +12V? Or did I misinterpret the datasheet? --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .