A nice touch is seeing the model 1-1618002-8 on the casing, making it easy to reorder later.
Car Heavy Duty Relay Switch 12V 30A SPST 4Pin Waterproof Automotive Pack of 5
With the RemoteKit type, this relay keeps things clear, and you will find that labeling is straightforward.
I like the flange mount relay because it helps keep the relay aligned with nearby connectors.
What stands out about this device is that the RL40 model stays cool during extended use.
What stands out about the 40ISR model is its clear labeling, which helps you identify it quickly.