🚢 Waterproof 5-Pack Automotive Relay with Harness - 40 Amp 12V DC, 5-Pin SPDT Bosch Style for Automotive Truck Marine Boat Fan Review

I recently purchased a waterproof relay harness for my automotive marine project, and I am thoroughly impressed with its performance during heavy rain and water splashes. Thanks to my knowledge gained in practice, I can honestly say that this relay harness is one of the best on the market. It is easy to install and functions perfectly with no hiccups. The only con that I can think of is the price point, but you really do get what you pay for with this high-quality product.

I used this to drive the fan. So all the wiring can be relatively small thin wires and a low current switch and then use a relay and a heavier gauge wire to power the fan. The fan says to use a 40 amp fuse, which I think is overkill. I don't know what it actually draws, but it doesn't burn out, so its number is less than 40. Very convenient for a DIYer. make a swamp? Installing a fan in a minivan? Adding fog lights to your golf cart? Use your relays for correct wiring.

add this as a note, that all my judgments will be shorter until this hand heals. If the relay fails, it can cause serious damage and severe battery drain. Things can "stay" or "partially" and cause some real problems. I literally used TWO of these last week. I have TWO Mercedes Sprinters and BOTH fog light relays have failed. BOTH caused my battery to drain because I didn't know they were "on enough to drain the battery" and BOTH caused me great distress. I used these relays. Literally a minute