Basic Introduction And Advantages And Disadvantages Of Led Cob Down Light

LED COB down lights are generally used in new LED lighting sources based on traditional downlights, which are improved and developed products. The design of LED downlights is more beautiful and lightweight, and can meet certain requirements during installation, that is Maintain the overall unity and perfection of architectural decoration, and do not destroy the general setting of lamps. The principle is that the terminal voltage of the PN junction constitutes a certain potential barrier. When the forward bias voltage is applied, the potential barrier drops, and the majority carriers of the P region and the N region diffuse to each other. Since the electron mobility is much larger than the hole mobility, a large number of electrons will diffuse into the P region, which constitutes the injection of minority carriers into the Pregion.

How about led downlights - the advantages and disadvantages of led cob downlights.

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Advantages introduction:

1. The design of the led light adopts the design form of secondary optics. Generally, the light of the led lamp is irradiated into the area that needs to be illuminated, which can make the illumination more efficient, so it is willing to be in many places. Choose to use led lights. The light-emitting diode of the led lamp is a low-voltage device, and the voltage is safe to use, especially it is very suitable for use in public places.

2. The light source of the led light is unidirectional, and there will be no diffuse reflection to ensure the efficiency of the light. 3.

The light decay of the led light is very small and the service life is very long. The led light still has high use value after more than 10 years of use, and it can be used for more than 50,000 hours. The decline will not exceed 3%.

Disadvantage introduction:

1. The light source of the led lamp is white light, which is also an individual defect in the manufacturing process under normal circumstances, as well as the matching error of the lens, so it will easily form a yellow circle when the led lamp is used, which will affect the to the lighting effect of the lamp.

2. Although the light decay of LED is very low, this is basically for high-power LED lights, while the light decay of low-power LED lights is still relatively large, and this low-power LED light has a long service life. There is no high-power lamp for a long time.

3. There is mercury pollution in the production process and after use and disposal. This mercury pollution has great harm to the natural environment. At present, Western countries attach great importance to mercury pollution, and many people are increasingly aware of the harm of mercury pollution.

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Today is different from the past, often many things are no longer single, they have become diversified, so are lamps. Through the introduction of the above article, I believe that most people have enough understanding of led downlights.

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