If your boat trailer light wiring goes out, you're definitely going to need a replacement. Boat trailer lights make sure that, as you drive, those behind you can still see when you're braking. This will help you to avoid having other drivers rear end your boat on the way to the water. Thankfully, trailer light wiring isn't as specific as many other marine accessories. For the most part, it comes in a standard size and can be found with relative ease. Installing it is similar - if you’ve never done any wiring you should think about whether you're equipped, but all it really takes is watching a Youtube video and good, careful splicing. ReelTrail.com is the marketplace for outdoor enthusiasts to buy and sell new, used, vintage, and handmade gear online. Welcome to the ultimate website for outdoor gear and adventures.