I have a sprinkler system installed at my garden, but the controlling device stopped working. I do not want to spend a lot on an internet-controllable one so I decided to build my own. I was almost done with the relay system, when I realised that I have a 24 VDC adapter and not a 24 VAC one. (The solenoids of my magnetic valves require 24 VAC). I looked up on the Internet and found that the AC coils (in the solenoid) should work with DC power, but because I'm not sure about it and I do not want to kill it I decided to ask if they work with DC power.