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.

Want to upgrade your trailer? Find 12 custom utility trailer ideas to boost safety, storage and performance with handy ...

This LED lamp’s lens spreads light across 180 degrees of view, and its four diodes ensure sufficient candlepower throughout that wide angle to meet or exceed the federal regulations. The lamp is ...