egglog12:
@fungus this is really helpful. Just to make it a little complicated, what IF I add a solenoid (12V 600 mAh) Lock-style Solenoid - 12VDC : ID 1512 : Adafruit Industries, Unique & fun DIY electronics and kits in the circuit. Would a 12V 3A enough to power everything? Thanks again for the help.
500mA for a solenoid seems suspiciously low....
I'd get a 5V supply for the LEDs and use your 12V supply for the solenoid. If you need a single supply then 12V 3A should be enough, but put a big-ass electrolytic capacitor on the power wires next to the solenoid to give it a kick when it fires. Also a big-ass diode across the capacitor (backwards) to absorb any negative voltage spikes created by the coil when you release it.