The Planted Tank Forum - View Single Post - Aquarium timer using Irrigation computer
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Old 02-26-2008, 11:43 PM   #15
Are these real?
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Basically, the irrigation controller has a number of contacts that switch 24VAC. Normally, you would connect solenoid valves (sprinkler valves) to them. But, you could also connect say a 24VAC relay to them which in turn switches an electrical outlet which could be connected to your lights or dosing pumps.
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