You will find that this unbranded relay is quiet in operation, with minimal hum or buzz during long runs.
Solid State Relay Module 10A DC 3-32V In 5-30V Out For Arduino Raspberry Pi PLC
This Potter & Brumfield piece shows consistent molding and a tidy coil dress that looks professional.
What stands out about the unbranded brand is the lack of logos, keeping the look consistent with other anonymous hardware.
This unbranded relay comes with a clear plastic cover, so dust stays out and you see the internals easily.
A nice touch is how the unbranded brand uses a bright indicator LED, so you know at a glance when it's active.
A nice touch is the gentle tension in the terminals on this unbranded relay, which grips wires without crimping them hard.