“Solenoids are good thus far. Have purchases 2x lots of 2 and have been using them with compressed air for a R&D project. The included DIN connector has LED for status which is great..
It would have been good if it also included a fly-back diode (suppression).
Alternatively, on the website have the solenoid listed with a FYI fly-back diode is an option/available.
Would I guy them again, YES”