I used this relay to turn on a set of LED backup lights on my dad's Tundra P/U truck. I'm no expert, but this looks like a decent piece. My only complaint was that I couldn't see or understand the cryptic schematic printed on the unit. There was no documentation. Luckily, by looking through the lid, I could tell which terminals were doing WHAT. Works well. The part is probably not waterproof, but I installed it in a waterproof case. As another Ravenian suggested, I might choose other relays better suited to the automotive environment.
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