University questions hidden in Led panel light

At night, the neon lights are gorgeous, bright, and radiant, and the cities are decorated to be extraordinarily beautiful and dreamy. And behind these bright lights, Led panel light is the first-class contributor!

In fact, there are Led panel lights everywhere in life, and students must be very familiar with it. So, what principle does the Led panel light rely on to emit light? What is the difference between it and ordinary incandescent lamps? Next, Xinjielighting, a professional Led panel light manufacturer, will introduce you in detail.

Lighting principle of Led panel light

The full name of LED is Light Emitting Diode, which is the English abbreviation of light emitting diode. Simply put, it is a semiconductor material device that can directly convert electrical energy into visible light, which can emit red, yellow, blue, green, cyan, orange, purple and white light.

Its internal semiconductor wafer structure consists of two parts - N-type semiconductor and P-type semiconductor. N-type semiconductors mainly contain electrons, while P-type semiconductors are dominated by holes. When these two parts of semiconductors are connected together, they form a "PN junction". When current passes through this PN junction, electrons and holes combine to produce spontaneous emission light.

The different materials of the diodes will produce different colors of light, and it becomes the Led panel light of various colors that we see. This is the luminous principle of the Led panel light. This semiconductor chip is its "heart".

However, the white light we usually see most often is not so easy to obtain. The simplest way is to use red, green, and blue to produce white light. This way can easily adjust the required color temperature and color light, but it is more complicated in power supply design, and there are problems of uneven light emission. In addition, we can also use the phosphor coating method, which has strong luminous efficiency, but the uniformity of white light is easily affected by many factors.

In life, we can also see another kind of Led panel light composed of special chips that can emit white light. They are composed of GaN chips and yttrium aluminum garnet (YAG) packaged together. After the GaN chip emits blue light, part of the blue light excites the YAG phosphor to emit yellow light, and the other part of the blue light mixes with the yellow light emitted by the phosphor to obtain white light. We can obtain different types of white light by changing the chemical composition and thickness of phosphors.

How does Led panel light save electricity and energy?

Led panel light can become the winner in the update and iteration of the light bulb market, and eliminate members such as incandescent lamps, fluorescent lamps, and high-intensity gas discharge lamps one by one. It must have its unique advantages, that is, energy saving!

Since Edison improved the light bulb, the incandescent lamp has been occupying the main market, but its photoelectric conversion efficiency is only 2%~4%. Today, with the comprehensive popularization of energy saving, emission reduction and green environmental protection, Led panel light is undoubtedly the darling of the times. It has obvious advantages in terms of luminous intensity, use time and luminous efficiency. The actual value of luminous efficiency can be as high as 90%. . Under the condition of the same light intensity, Led panel light only needs to consume 1/10 of the light-emitting power of incandescent lamps, and only consumes a few kilowatt-hours of electricity for 1,000 hours. Such a huge gap in energy saving is obvious. Not only that, but the service life of Led panel light is also very long, which can reach 100,000 hours.

The ordinary fluorescent lamp has a filament at each of its two ends. The lamp tube is filled with a small amount of argon and thin mercury vapor. The wall of the lamp tube is coated with phosphor powder. The powder emits visible light. The characteristic of this lamp is that it requires a high voltage to activate before use, and only allows a small current to pass through when it is normally illuminated. The instability of this voltage not only consumes power, but also increases its own damage. Rate.

The working voltage of Led panel light is low, which is lower than the safety voltage of human body. It is safer and more reliable than ordinary civilian power supply, and it is also very suitable for lighting in public places. Not only that, Led panel light has no filament, it relies on semiconductor chips to emit light, it is not affected by vibration, and does not change with changes in external voltage and ambient temperature. At the same time, its light does not contain ultraviolet and infrared rays, does not produce radiation, and is healthier for the human body. In some remote areas, Led panel light also has great advantages, it can be powered by DC. It can be powered by both batteries and solar power and can be used in the field.

Wide application of Led panel light

It is no exaggeration to say that Led panel light can be seen everywhere in our life, and it can be found in almost all bright places. In specialty stores and large shopping malls, merchants use Led panel light to create a high-quality light environment that cannot be compared with other traditional lighting sources according to the display light source preference of some special products; in museums, art galleries, etc. On special occasions, the particularity of the exhibits requires that the lighting source does not contain ultraviolet rays and no heat radiation. Led panel light meets this requirement well...Of course, they also exist in our homes, such as the chandelier in the living room, the lamp in the room Most of the lights are composed of Led panel light.

The prospect of Led panel light is also bright. We can realize the connection between chips through computer programming, and gradually realize digitalization and intelligence. At the same time, we are also committed to further improving the power saving performance. If you need to buy Led panel light, you can contact us. We have a professional production team and rich production technology. We can guarantee the quality and provide competitive prices at the same time. Welcome your call:13392583195

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