Solenoid Valve Question:Power supply for a VERSA VSG-3521-U-D024?

I found a set of versas VSG 3521 and I cant seem to find the correct way to power them up in a circuit. From what I know they need 24V dc and 9.5 watts. I calculated that they need .395 amps is that right? Does anyone have any suggestions for a circuit that incorporates them, a power supply and a switch?

Thanks for all your help!!!!!