I have the 8A power supply
to be honest i now know how much draw i have on the system... 4.5amps and thats with everything running laptop, mount, sbig, qhy with 70% cooling on both. say no more
8A is a over kill but its never gotten close to capacity! hehehe
Oh by the way sarge
you need a 240v power supply
The first night i got stung the same way! so i had it out beside the car plugged in that way