What stands out about this power relay is the smooth motion and steady contact across cycles.
10PCS SONG CHUAN 832HA-1A-F-C-12VDC Power Relay 40A 277VAC 4Pins 832HA-1A-F-C
The PHOENIX label is clean and easy to read, a nice touch for service crews.
This Branded relay runs cool in my setup, and the contacts stay clean.
A nice touch is the gentle tension in the terminals on this unbranded relay, which grips wires without crimping them hard.
You will find that this relay carries the Songle brand, a name many hobbyists recognize and trust over time.