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LED lamp is broken and what are the reasons for attenuation

Release date:2017-11-14 Author:HAOBANG Click:

Usually, there are two reasons for the failure of LED filament bulbs. First, the chips and drivers of LED bulbs burn out, and two, the wiring or the lines connected to them are aging.

The light aging of LED filament bulbs is that the light intensity of LED bulbs after lighting for a period of time is lower than that of the original light. It doesn't look obvious, but it will have great sense of touch in comparison. The lower part is the aging of the light source. Different types of lamps and lanterns cause different reasons for senescence of light source.

Ordinary incandescent lamp: the larger the bulb of the bulb, the smaller the light source, which is proportional to the evaporation of the tungsten and the output of the light. The inflatable light bulb will be smaller because part of the gas prevents the tungsten wire from evaporating.

If the incandescent lamp is used with the same filament, it is made in the shell of different sizes, and the light source of the same time point is really smaller than the small bubble shell. In addition, the same is filled with bubbles, large space inside the glass bulb, gas convection to the glass bulb has relatively large radiating area, relatively small glass lamp temperature is much lower, while the temperature of the filament is relatively low, low luminous efficiency, tungsten evaporation rate is low, so the smaller light source.

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Although the LED bulb is better than incandescent, it can not completely overcome the aging problem of the light source. The senescence of light source for LED is mainly divided into two problems:

LED product itself quality problems: the quality of the LED chip is not good, and the brightness attenuation is fast. There is a defect in the production process. The heat dissipation of LED chip can not be derived from the PIN foot well, which causes the high temperature of the LED chip to aggravate the chip attenuation.

Condition problem: LED is a constant current drive, and some LED lights are driven by voltage, so that the attenuation of LED is too fast. It will affect consumers' use of LED lights. The driving current is larger than the rated driving condition, in fact, there are many reasons for the aging of LED light source, but the most important thing is heat dissipation. The better heat dissipation performance, led working temperature is lower, the smaller the attenuation, the longer the life of led.

Because the LED bulb itself has a certain amount of technology, it can be repaired. Consumers who don't know the LED light bulbs should try not to do it personally. And the broken LED bulbs piled up and sent back to the home to help repair them. So the stacked LED bulb, what light bulb do I use to illuminate now? You can consult the manufacturer for how many light bulbs can be purchased. When you use more than a dozen LED bulbs, you start to return all the accumulated LED bulbs back to the factory for repair, and it's still a year of warranty.

This article URL:http://www.gdhaobang.com/en/news/383.html

Related tags:led灯丝灯泡

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