1 inch Normally Open 110V 120V AC VAC Brass Solenoid Valve NPT

This solenoid is lighting fast and shuts off almost instantly. I was afraid the orifice was too small to get the flow I wanted (5-6 GPM to autofill a water storage tank) but was presently surprised to get 8 GPM with about 20 PSI of inlet pressure. Using it with a sump switch for on/off control so I needed normally open. Note that this is normally open, so you have to figure out how to close it when you want flow to stop. So far works perfectly.Downside is that there is no documentation in English. Only paper in the box is pictured here...all Chinese. No label on the 3 terminals to indicate what is hot/neutral/ground. There is an indicating LED across two of the terminals which I assumed to be hot and neutral. Hooked ground to the 3rd terminal and it seems to work that way. Terminals could barely accommodate 12 ga wire. That's what I had although much lighter ga will work with the minimal current.I would suggest buying a valve that is prewired with pigtails. This was about the only NO valve I could find, so pretty limited selection.

how is this wired? I notice 3 terminals, 2 with small resistors and one without?And can this control water mounted vertically without compromising reliability and longevity?the only instructions are entirely in Chinese and have no wiring diagram