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.

Utility Trailer Manufacturing Co. is making light emitting diode (LED) lighting a standard feature on all its refrigerated and dry van trailers as well as on its tandem and tridem axle flatbeds ...

At the launch ramp or around the campfire, boater talk often turns to troubles—and topping the discussion, along with outboards and tow vehicles, is the boat ...