I recently discovered I'd blown a trailer turn fuse on my Ram (pretty much each pin on the 7 way has its own 20a fuse come to find out) and they were the Micro2 size which I didn't have any of, so I went down to the part store and bought a 5 pack for $5.50, then came home and promptly ordered the 105 variety pack for $10 on amazon like I had done previously for other size fuses. Then I had a thought... Do I really want to risk burning down my truck over a cheap fuse? Is there any difference in brand? Naturally a youtube video exist to answer the question.. I canceled my order and am going to toss my cheap fuse variety packs I already have and get some name brand fuses.. (Lord knows I probably won't quit backing my boat trailer in the water with the lights hooked up... haha)