Review on High-Performance 12V DC Waterproof Relay with Harness - Heavy Duty 12 AWG Tinned Copper Wires, 5 Pack SPST Automotive Relay - 80/60 AMP 4-pin by Brandon Selpasoria

These relays are pretty good. The mounting tab, sealing and wire gauge look good. The description says the wire is tinned copper, but a few inches from the tip it's silver. I'm pretty sure it's actually CCA and not copper wire. Regardless, I have a few more in case there are any problems. I use them to power the fuel pump circuit using the original power wire as the trigger. All my wiring is 12 gauge copper so it should be fine.