Checking the trailer that hadn't been used for a while, found 4 of the 8 bulbs were blown. It seems to me that I changed more bulbs on that thing more than any car. It is a cheapo 8-foot by 4-foot box trailer. One axle, no suspension dampers. I would think when empty it bounces quite a lot and the motion at the back of the trailer breaks the hot filaments. I never replaced the reversing lights, I guess that is only energised when moving slowly. Anyway I went to auto parts store, to replace them with LED festoon bulbs, but had none, so had to replace with incandescent again.
frequent blown bulbs on trailers
Jul 18, 2026
Last reply: 3 months ago
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