Why does the LED light suddenly become very dark?

According to some friends, we have reflected why the LED lights suddenly become very dark, and then answer the questions about sudden darkening.

Generally speaking, LEDs should have normal light attenuation. If they are used for a long time, they will become darker. Whether your LEDs are light or long.

Generally, 5% is normal within one year and 15% within three years, so LED lights may be used after 10 years, but the luminous flux will be much lower. You can see what is the LED light decay and how fast light decay is caused?

Why the LED light suddenly becomes very dark is usually caused by poor product quality.

1. The LED chip used is not good, and the brightness is attenuated faster.

2. The LED is driven by a constant current, and some of the LEDs are driven by voltage to cause the LED to be attenuated.

3. The drive current is greater than the rated drive condition.

In fact, there are many reasons for the light decay of LED products. The most critical issue is the hot issue. Although many manufacturers do not pay special attention to heat dissipation in secondary products, the long-term use of these secondary LED products will reduce the degree of light attenuation. LED products should be high. How to solve the heat problem with LED lights

After the LED lamp is used for a long period of time, the brightness becomes low. This is unavoidable. In normal cases, the LED chip will attenuate! If you think that the attenuation is slower, only use a good quality chip, but it is more expensive!