According to some friends, we've looked into why LED lights suddenly become very dim and now we're answering the question of what causes sudden darkness in LED lighting.
In general, LEDs are expected to experience normal light degradation over time. If used for a long period, they will gradually become dimmer. Whether your LEDs are new or old, this is a natural process.
Typically, a 5% decrease in brightness within the first year and up to 15% after three years is considered normal. So, even after 10 years, LEDs can still be functional, but their light output will be significantly reduced. You might wonder what causes LED light decay and how fast it happens.
Why do LED lights suddenly become very dark? This usually points to poor product quality. Here are some common reasons:
1. The LED chip used is of low quality, which leads to faster brightness loss.
2. Some LEDs are driven using voltage instead of constant current, which can cause uneven performance and quicker dimming.
3. The drive current exceeds the rated specifications, causing unnecessary stress on the LED components.
There are many factors that contribute to light decay in LED products, but one of the most critical issues is heat management. Many manufacturers overlook proper heat dissipation in cheaper or secondary-grade LED products. Over time, this lack of cooling can accelerate the dimming process.
LEDs are designed to last a long time, but proper thermal management is essential to maintain their performance. If you want your LED lights to stay bright longer, it's important to choose high-quality components and ensure good ventilation around the fixtures.
After prolonged use, it's natural for an LED lamp to lose some brightness. This is due to the gradual degradation of the LED chip itself. If you want slower dimming, you should go for higher-quality chips, though they tend to be more expensive. In short, while some level of dimming is unavoidable, choosing better products and maintaining them properly can help extend their lifespan and brightness.
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