Review on EPAuto 12V-DC ATC/ATO 12 AWG In-Line Fuse Holder - 10 Pack (30A) by Jeff Warne

I bought these to add some circuitry to an older car. Each circuit was 10 amps max and the fuses are under the hood but in a weatherproof location. The fuse holders themselves appear to be fairly solid, but the wire appears to be "copper plated" rather than solid stranded copper. The fuse holder cover fits snugly enough to stay on, but seems far from waterproof. Possibly waterproof at best. However, I don't expect these fuses to be exposed to moisture, so they will work very well for my needs. I just wouldn't use them for anything over 20 amps and anything exposed to external elements.