With the continuous development of science and technology, light source technology has ushered in a revolutionary change, LED as a new type of semiconductor light source, with its energy saving and environmental protection, high luminous efficiency, long life, high security, low infrared radiation and a series of other advantages, and gradually replace all kinds of traditional light source lamps and lanterns, in the urban landscape lighting, road traffic lighting, entertainment venues, and stage film and television lighting, indoor space lighting and other fields play an increasingly important role. It plays an increasingly important role in urban landscape lighting, road traffic lighting, entertainment venues and stage lighting, indoor space lighting, etc.

    The traditional stage film and television lighting often use halogen lamps and lanterns, but there has been a low luminous efficacy, heat, infrared radiation, high, short life of the light source and other issues, and the characteristics of the light source itself also limits its further improvement. LED light source is just not the above problems, through a variety of technical means to overcome the spectral discontinuity, low color rendering index after the problem, stage film and television lighting in the field of special LED lamps and lanterns also came into being, and gradually applied to the small news class studio.

    The most impressive feature of LED lamps is its long life, which theoretically can reach 50,000 or even 100,000 hours. If you can really reach such a theoretical value, then the use of LED lamps and lanterns once and for all, greatly reducing the use of maintenance costs. But in our actual use of the situation is how it is, whether it can reach the theoretical service life?The following are LED lights in the use of the process of frequent failure to summarize the impact of factors affecting the service life of LED lights.

    1.Driver damage

    LED lights work when the heat emitted is very high, part of the power supply device is very sensitive to heat, if the LED lights heat dissipation design is not reasonable, or the quality of components does not meet the standards, the use of LED driver damage will be very frequent. LED driver damage is the most direct manifestation of the LED lights can not power or use the sudden extinction of the light.

    2.Lamp beads damaged

    Nowadays, LED lamps have adopted the lamp bead modularization technology, through the integrated packaging can be multiple LED point light source or LED module in accordance with a certain number and shape of the combination, to meet the different LED lamp power and type of demand. But a lot of LED lights due to the heat dissipation structure design is unreasonable or bead module production process defects, resulting in bead module after a period of time will be partially or completely burned out of the situation. The most direct manifestation of the damage to the lamp bead module is a significant drop in illumination, the spot appears obvious dark lines or LED lights do not light up at all.

    3.luminous decay

    LED lights have always had the problem of light decay. It refers to the fact that after a period of time, the light intensity of LED lamps will be lower than the initial light intensity and cannot be recovered, i.e., the reduced portion is called the light decay of LEDs. Due to the irrecoverable nature of this problem, it has become a very serious defect of LED lights.

    4.color temperature drift

    Like light decay, color temperature drift is an unavoidable problem in LED lights after long time use. The color temperature drift we are talking about here does not refer to the color temperature drift phenomenon that occurs when LED lamp beads are potted in silicone. Rather, it refers to the LED lights after a period of time, with the role of thermal mechanisms, LED chip light degradation increased, poor heat dissipation of the LED light color temperature will appear more obvious changes, no longer maintain the initial white light color temperature. And this phenomenon is called color temperature drift rather than color temperature attenuation is because the color temperature of the LED lamp is not only lower, there will also be a rise in the situation.

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