What stands out about OLS is how plainly the part number is marked under serial branding.
NEW 5-PIN 40/30 AMP 12V DC Waterproof Automotive SPDT Relay Kit pack
The Switch Harness Set is bundled, and that means fewer extra parts to source on your own.
This 2 pack helps you keep a spare relay close when you need it most.
You will find that OLS relays give consistent results across several DIY builds over time.
A nice touch is the clear markings, which make wiring this power relay feel simple and safe.
A nice touch is the little Audiopipe emblem on the relay's housing.
You can tell the Miniduino team cares, and what stands out about their approach is the practical labeling on the relays.