This is the primary cause of trailer-light problems. Symptoms include flickering, fast-blinking, dimness, intermittent operation (often when a trailer ball is used for a ground), and complete failure.
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HOW TO INSTALL LIGHTING FIXTURE

In this video, we will guide you through the process of installing various light fixtures, covering essential topics such as: ...
So, the trailer for your personal watercraft has a light out. It happens to the best sailors and fishers, and it isn’t always an easy fix. That’s what this guide is here for. From troubleshooting to ...