2Pcs 40/30 Amp Waterproof Relay Switch 12AWG Harness Set with Built-In Diode- 12

The model A110-30-11-84 is easy to read, and that is a nice touch during a busy install.

You will find that this one is a contactor relay, which is reassuring when running high-current appliances.

What stands out about the indicator light is its simple visual feedback during everyday troubleshooting.