To give a bit more clarity, I am dipping my toes in with this project here. They are 5v addressable LED's and the Pi is 5v too. I want one (Australian brought) power supply to power both the pi and the leds form a standard wall socket, so it will need to be under 10amp. My original question, poorly worded I suppose, is the following understanding correct? You can use any amp power supplies without risk of destroying the pi or leds as they will only draw what they require? But you must get the correct voltage psu?