Review on 2-Pack Amber LED Side Marker Lights for Trucks and Trailers - Sealed, Waterproof, and Surface-Mounted Indicators with 3 LEDs, Front and Rear Compatibility, and 3.9-inch Size by Partsam by John Brazington

I'm giving it 5 stars because it's sealed and 4 because it's not as bright as the other marker lights I've added for the typical trailer design, red and amber from 2 other companies. They had more LEDs but are a lot bigger but look a lot dimmer than the others. It's also ridiculously difficult to mount the lens cap on something with a slight curve, like my trailer's aluminum fairing. I even ended up having to hold it with one hand and clap it with the other hand harder than I want them to snap and sit down. I thought of pouring some plastic from the snap edge but they are already in place. They would be great on a strong boat trailer frame, they seal really well unlike the ones with gaps which I had to seal like crazy.