Let voltage is the usual culprit for early led bulb failure, though high voltage can do it too. This is reflected in the ratings of after market LED bulbs on Amazon. Bulbs with wider operating voltages have better reviews. And workmanship when the fixture is being assembled can be a big factor too. The replacement led fixtures I bought for my 2015 trailer lasted one season. I ended up reinstalling the original fixtures and replacing the bulbs with after market LED bulbs that are still going strong after 2 seasons.
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2015 Bullet 220RBI
2019 Chevy Colorado extended cab V6 3.6 liter
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