Review on EPAuto 5-Pack Relay Harness: 30/40 AMP, 12V, 5-PIN SPDT Bosch Style - Ultimate Power Control Solution by Daniel Paige

They work great, but make sure you know exactly where the wires are before installing them. They don't have the typical color coding of other relays (the red wire on this relay isn't in the same place as the red wire on another brand). Just read the instructions and follow the diagram that came with this relay. Otherwise the function is fine. However, they are not weatherproof so do not use them in places where they may be exposed to moisture such as B. in the engine compartment of a car. I had a short under the hood but it was my fault so I'm not deducting points for that. Just be smart and get an all weather option for the engine bay or any marine application.