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What are the advantages and disadvantages of led bulbs?
May 25, 2018

In recent years, led bulbs have been widely used in our daily life. They are not only environmentally friendly, but also pollution-free and have a long service life. Around the world, both urban and home lighting are the best choices. The advantages and disadvantages of led bulbs and led bulbs are described below.

What are led bulbs

A led light bulb, is a kind of using light-emitting diodes (leds) as the main material to produce in use of outdoor lamps and lanterns, it can shine, mainly because we use the weak electricity can make the luminous effect of semiconductor PN junction, means that we are certain positive bias voltage and current situation, the spread of injected electrons in P and N area after radiative recombination and emit light. Compared with traditional bulbs, LED lamps have advantages of high luminous purity, low power consumption and long life.

Advantages of led bulbs

1. Led bulbs have a long service life. Led bulbs typically have a very long life and can last more than 50,000 hours compared to other conventional bulbs.

2, led lights can adapt to all kinds of state of the environment, general energy-saving lamps if it is under the conditions of open and close frequently is very easy to bad, and the state of the led lights can adapt to the high working environment.

3. The manufacture of led lightbulbs is a combination of the world's top light distribution technology. Its light source is the surface light source, which can increase the luminous surface and is very close to people's eyes.

4. There is no mercury, lead or other harmful substances in led bulbs, and there is no pollution to the environment.

Disadvantages of led bulbs

1. Although led lights have a low light fading degree, it is mainly for high-power led lights, while low-power led lights have a large light fading.

2, the Led light color is white, because the individual defect in manufacturing process, and the matching of the lens error, so in the use of it's easy to form a circle of yellow, can affect the effect of the lamp.

LED energy-saving lamp quality identification

LED energy-saving lamps are increasingly popular among consumers because of their obvious energy-saving effect, long service life, no stroboscopic effect, no noise, soft light and wide working voltage range. But there are many leds on the market, and the quality is mixed. How to choose and buy the product that oneself are satisfied with in the energy-saving lamp of lamps and lanterns shop dazzling? The advantages and disadvantages of energy-saving lamps can be identified by "five views", as follows.

Look at the packaging and the logo

The state requires the manufacturer of LED lamps to mark the following contents on the outer package: rated voltage, voltage range, rated power and rated frequency. Generally speaking, the high quality products of trademark printing quality is good, the font is clear, not easy to fall off, with a soft wet cloth to wipe, mark clear, not easy to erase, a manufacturer's trademarks and related certification marks. The printing quality of fake and inferior products is poor, the font is blurred, easy to erase, no manufacturer's trademark and relevant certification mark.

Second, look at the appearance of LED lamp

True LED energy-saving lamp, it is to use three base color tube, tube white, cover with hand to see, more white. Additional, look from lamp tube, can put a lot of lamp together to compare, the shape of lamp tube and dimensional conformance is more machine bend and fold model, it is the product that produces on a large scale more. The consistency of products is good, the quality is easy to be guaranteed, and the interchangeability of maintenance is better. Of course, there should be no cracks, looseness and pried marks on the exterior. In the process of installation and disassembly, the lamp head should not be loose and crooked.

The plastic shell of the lamp must be of the engineering plastic flame retardant type. Ordinary plastics are deformed and flammable and are prohibited from being used in energy-saving lamps. On the surface, the two can be simply distinguished. The latter has a smooth and glossy surface, and the former has a texture similar to that of frosted glass.

Look at the temperature at work

LED energy-saving lamp in normal working condition, its temperature rise should be very low. Otherwise, LED energy-saving lamp life is very short. At the same time, when the energy-saving lamp is on, there is rapid flashing, or very dazzling fluctuation, which indicates that the energy-saving lamp has quality problems.

Look at startup performance

LED energy-saving lamp has two characteristics: first, the higher the temperature, the easier it is to start. The other is that the light is off and won't flash. In addition, it is worth mentioning that many LED energy-saving lamps are very dark when they are turned on, which is detrimental to the life of the bulbs. The LED energy-saving lamps should be equipped with power circuit and PCB board.

Five, look at the interference

In our country, the electromagnetic compatibility is appliances must pass the project, however, this project is very complicated, the light users buy a look at the package whether have through the national flag of electromagnetic compatibility test, 2 it is to take a medium short wave radio, when the lamp is working, turn the radio on nearby, radio to medium short wave radio station in the lower noise, electromagnetic compatibility of the measured light is better.

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