Can anyone point in me it the right direction for the amount of current a 12VDC coil typically uses? The power usage of a 24VAC coil is explained in Rays blog post about powering 24VAC coils with DC, but I can’t find much equivalent info for 12VDC coils. I am interested in this to determine the most efficient setup for me considering I am powering the system on a 12V battery and intend on having the coils energised for reasonably long periods because of the use of drippers in my system.