The hazards of LED lights, the fatal disadvantage of LED lights

Exposure to LED lights for a long time is highly likely to have a negative impact on the retina of the human body.

pigmented epithelial cells.

causes damage, which damages the retina. Therefore, in life, try not to use LEDs for desk lamps, and do not use eyes and LED lights to look directly. In addition, it is necessary to control the use time of LED lights and take a break every half an hour or so.

Heat dissipation problems, if the heat dissipation is not good, the life will be greatly shortened. The power saving of low-end LED lamps is still lower than that of energy-saving lamps (cold cathode tubes, CCFLs). The initial purchase cost is high. Due to the strong directionality of LED light source, the special optical characteristics of LED need to be considered in the design of lamps.

According to the light attenuation of 7%, the actual is only about 50,000 hours. According to the light attenuation of 3%, the actual application can reach 80,000 hours. LEDs are not a replacement for incandescent lamps.

Throughput, light efficiency and color rendering are okay, but they are too expensive and will not decrease in recent years. However, the cost of replacing incandescent lamps can be reduced by increasing the luminous flux of the product. LEDs can not be used as ordinary light sources simply, to drive the power supply, optical LED lamps and heat conduction cooperation.

From the current point of view, LED lights can be said to be superior to the lights used in the past. There is basically no harm, maybe the excipients used in the manufacturing process, or the process will involve some harmful substances? It is also not known, and it should not be very harmful to users.

But from another point of view, due to the cheapness, the waste is large, and the electronic waste generated is too much, which will also produce pollution.

The fatal disadvantage of LED lights is the surge voltage.

All LED luminaires have this fatal flaw, and so far, no one has come up with a good solution. All those who are engaged in LED power supply, or engaged in LED finished lamps and lanterns, have avoided talking about this problem and pretended not to know, but in actual mass production, this problem is endless.

Description: The most common problem is to do a project, hundreds of lamps, often damaged for no reason, common like a street installed LED street lamps from time to time do not light up, often broken, repaired and broken, broken and repaired.

There are also LED fluorescent lamps, many of which use non-isolated power supplies, and they are often found to be damaged during mass production, and the root cause is here. It is caused by surge voltage, and there are many reasons for surge voltage, the common one is outdoor lightning strike, or large load on, shutdown voltage clutter, etc.

Advantages of LED lights:

1. High efficiency and energy saving: LED has low working voltage, adopts DC drive mode, ultra-low power consumption, and only consumes a few kilowatt-hours of electricity in 1,000 hours.

2. Long life: LED lamps have no filaments and glass bubbles, which are not easy to break, and the service life can reach 50,000 hours.

3. Health: The light does not contain ultraviolet and infrared rays, and does not produce radiation.

4. Green environmental protection: it does not contain harmful elements such as mercury and xenon, which is conducive to the development of the world, and will not produce electromagnetic interference.

5. Flexible application: LED lamps are small in size and can be made into various forms of light and thin short products in point, line and surface.

In our daily life, it is inseparable from lamps and lanterns, and with the continuous development and change of science and technology, we buy lamps and lanterns not only to consider the problem of lighting, but also to consider the effect of decoration, LED lamps are more popular. So, what are the disadvantages of LED lights? What are the precautions for the purchase of LED lights?

Let's take you to find out.

LED lamps will have mercury pollution in the production process or after the use of waste, this pollution has a great harm to our natural environment, and the life of this LED will be relatively short, very easy to damage, although it has the effect of energy saving, but it does not save money and needs to be replaced frequently.

Precautions for the purchase of LED lights.

1. When purchasing LED lamps for constant current power supply, we should pay attention to the resistance, capacitors and IC components of the driving power supply, the difference between them is still very large, and the rationality of the design of the entire power supply and the circuit itself has a very large impact on product quality. The driving power supply of some lamps is only a constant voltage, and it does not achieve a real constant current, but the LED lamp must have a constant current to ensure its quality and service life. Therefore, we must pay special attention when purchasing, especially for LED lamps with relatively large power.

2. The LED light source on the market will be relatively different in terms of **, because the roller cong should be purchased to prevent being deceived, even if it is an LED lamp with the same color and brightness, its ** can be several times different. And its gap is mainly reflected in the reliability, light decay and appearance of the process and other performance.

3. When buying LED lights, we should recognize its relevant standards and purchase them from the perspective of safety, and the products purchased must meet the relevant international and national standards. Since LED lamps are new products, the national standards lag behind and only provide product qualification tests, so the international security and dismantling certification is the standard to measure the quality of the lamp.

Article summary: The above is about the disadvantages of LED lights and what are the precautions for the purchase of LED lights, I hope you will be helpful to you. If you want to know more about it, please stay tuned to Qeeka Home.

Here are some common fatal drawbacks:

Higher initial cost: LED lights typically have a higher initial purchase cost compared to traditional lighting. Although it has declined with the advancement of technology and the intensification of market competition, it can still be a financial burden for some consumers.

Light temperature: The light temperature of some LED lights may feel cold or cooler, which may not meet the aesthetic and comfort needs of some people compared to the warm tones of traditional bulbs. However, there are now LED lights on the market that offer warm colors.

Heat dissipation problem: LED lights will generate a certain amount of heat during the luminous process, and if the heat dissipation is poor, it may reduce the life and performance of LED lights. As a result, LED lights often require additional heat sinks to ensure proper functioning.

Fire Risk: Although LED lights do not produce high temperatures on their own, there may be a risk of fire if they are not installed properly or if substandard LED lights are used. Therefore, when buying and installing LED lights, make sure to choose reliable brands and products that meet safety standards.

Light attenuation: Although LED lights have a long lifespan, the brightness of LED lights may gradually decay as the use time increases. This can lead to changes in light quality and the need to replace the fixture after its useful life.

Although there are some drawbacks, LED lights are still an efficient, energy-efficient, and environmentally friendly lighting option. As technology continues to evolve and improve, it is expected that these issues will be solved gradually. When buying LED lights, choose reliable brands and products that meet safety standards, and make an informed choice based on your individual needs and preferences.