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					Originally Posted by  FishyFishy!
					 
				 
				Would the 150W be enough? The power supplies say "100-240Vac 1.8A,  50-60 Hz) 
 
I'll totally admit, when it comes to electricity....I know absolutely nothing lol. 
			
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 That's the input, read the output specs. Should be 24VDC @ X amount of amps. I believe the 2640 pumps are rated at 85W or 3.5Amps so to run one pump you'd want a 100W supply, for two pumps a 200W supply. You can always go bigger as well, just not smaller as you'll burn it out.