You will find that the 2pcs - 4pin relays work well with standard relay boards and small enclosures.
2PCS Power Relay DC12V Coil, 30A SPDT(1NO 1NC) with Flange Mounting and 10 Quick
A nice touch on the LY2N Relay IEC255 is the consistent build, with the same feel across several units I ordered.
A nice touch is that the Songle brand sits clearly on the side, making installation readings easier to see.
The BU1 AC carries a calm, steady feel in the hand, and the click is firm.
What stands out about this unit is the Relay Switch model, which feels solid and dependable.
A nice touch is the KanSmart branding, and it sits well next to other parts on the bench.
What stands out about this relay is the 500A size, which gives you room to grow later on.
It helps to know that the exact model is SRD-12VDC-SL-C when you set it up.
A nice touch is that the KanSmart branding is clear helps when sorting through parts at home.
A nice touch is the gentle click sound this unbranded relay makes, giving clear feedback when it switches.