What stands out about this unbranded relay is that the pin layout is printed right on the top for quick reference.
QTY:1 NEW FOR AR30G4L-10E3R/G/Y/W Transparent ring with light button switch
You will find that this unbranded relay fits standard sockets, and the metal tabs feel secure and nicely finished.
You will find that labeling the panel with model 301-1C-C-R1 U01 12VDC saves time.