How industrial lighting experts comprehensively dissect the color temperature of LED lamps缩略图

How industrial lighting experts comprehensively dissect the color temperature of LED lamps

Choosing the right led lamps, with its long-lasting, energy efficient, cost saving, rugged design concepts and environmental advantages, led lamps have become more and more popular in our daily life. Because it offers these obvious advantages to enhance our lighting environment, how to choose the right led lights seems to be a must consider. What is the right color temperature as well as the right atmosphere? Let the industrial lighting experts at Mega Lighting take us a step further in choosing the right LED fixtures by following our knowledge of color temperature.

How industrial lighting experts comprehensively dissect the color temperature of LED lamps插图

What is color temperature? Color temperature is the color of an LED lamp, measured in degrees Kelvin. From a lighting perspective, most LED lights cite a white color temperature, and there are usually three shades of white light: warm white, pure/natural white, and cool white. Using sunlight as an example, we can easily understand the different levels of color temperature. Noon time is bright, more beautiful light close to the equator. At sunrise and sunset the lights light up a yellow, or even red color. Lower color temperatures will have more yellow, and higher color temperatures will go from yellow, to pure white, and finally to bluish. Generally speaking, warm white LED light refers to the white, yellowish type and cool white LED light bright blue-white. In between, lies daylight "pure white", quite a lot of white kind of white.

How industrial lighting experts comprehensively dissect the color temperature of LED lamps插图2

Regarding the various color temperatures, the relevant definitions: warm white: usually from 2600K--3500K; pure white: usually from 4000K--5000K; cool white: usually higher than 5500K. It should be pointed out here that there is no uniform standard for the naming of color temperature. standard. Some people call it cool white such as daylight, natural white, cold white. Different companies may have different naming rules for warm, pure or cool, but the number is not much difference. Since there is a wide variety of nomenclature, it would be better to identify the color of light with the Kelvin temperature scale to avoid confusion. Why use temperature colors? Doesn't light have a "temperature"? So why do we use this word and what does it do to the color? For example, when a black object like a piece of iron is heated, its color changes with the temperature of the heating. It turns out that it is very useful to describe the range of white light colors in terms of hue. As the iron heats up, it begins to emit red light. As it heats up more and more, its color changes to orange and you can actually tell its temperature by measuring its color.

How industrial lighting experts comprehensively dissect the color temperature of LED lamps插图4

What is the best color temperature for LEDs for your application? Since color temperature is an aesthetic choice, everyone is likely to have their own preferences for each setting and application. Here are some general criteria for choosing LED color temperature applications. Warm white is preferred forinterior lighting in the home, like dining, living and reception areas, where we want a looser environment that gives us a slightly more reddish effect and makes us feel warm and cozy. Pure white lends itself to task performing kitchens and bathrooms. Some of the retail stores and offices are also with Pure White, which makes us feel more energized and helps us to focus our work Cool White is best in outdoor applications such as industrial and commercial areas such as warehouses and hospitals. Especially for some jewelry shows, cool white lighting can raise people's attention and emphasize and make clear diamonds, silver and jewels shine.

To sum up, consider choosing a suitable led light, the choice of color temperature, including other details and information, you must make a judgment in advance, recolux is committed to the research and development of medium and high-end LED industrial lighting fixtures, production, sales in one of the integrated lighting enterprises, consumers can use different color temperature according to their own preferences.

Advantages and disadvantages of energy-saving lamps and LED lamps缩略图

Advantages and disadvantages of energy-saving lamps and LED lamps

Advantages and disadvantages of energy-saving lamps and LED lamps插图

House decoration not only includes construction projects, but also furniture, soft furnishings, lighting, etc. Decoration is a multi-faceted and complex project. Energy-saving lamps and LED lamps are commonly used lamps during decoration. Each of these two lamps has its own advantages and disadvantages. , people can learn about it before making a choice. Today I will introduce to you the advantages and disadvantages of energy-saving lamps and LED lamps.

Advantages and disadvantages of energy-saving lamps and LED lamps插图2

Disadvantages of energy-saving lamps

  1. Energy-saving lamps start slowly.
  2. Energy-saving lamps have a bright line spectrum, so ordinary energy-saving lamps are purple, and things under the energy-saving lamps will be seriously discolored. Blues will turn to purple, and reds and yellows will become more vivid. Therefore, energy-saving lamps should not be used for color matching work.
  3. After long-term investigation and research, scientists have reached a preliminary conclusion: the radiation from energy-saving lamps may cause harm to human health and even cause cancer.

Advantages of LED lights

  1. High energy saving: energy saving and environmental protection. DC drive, ultra-low power consumption electro-optical power conversion is close to 100%, the same lighting effect saves more than 80% energy than traditional light sources.
  2. Long life: Some people call it a long-life lamp, which means a lamp that never goes out. Solid cold light source, encapsulated in epoxy resin, there are no loose parts in the lamp body, no filament light, heat deposition, light attenuation and other shortcomings. The service life can reach 60,000 to 100,000 hours, which is more than 10 times longer than traditional light sources.
  3. Multi-variable: LED light source can use the three primary colors of red, green and blue. Under the control of computer technology, the three colors have 256 gray levels and can be mixed at will, 256×256×256 = 16777216 colors. The combinations of different light colors are diverse and can achieve various dynamic changes and various images.

Disadvantages of LED lights

  1. LED lights cannot completely replace incandescent lamps; luminous flux, light efficiency and color rendering are all OK, but they are currently too expensive and will not decline in recent years. However, the cost of replacing incandescent lamps can be reduced by increasing the luminous flux of the product.
  2. LED cannot be used as a simple light source; its purpose is driving power, optics and heat conduction.
  3. LED lights will also heat up and need to dissipate heat. Advantages and Disadvantages of Energy-Saving Lamps and LED Lamps With the development and advancement of technology, products are constantly being improved and upgraded. Lamps are essential household items for every home. Therefore, everyone must first understand the relevant information before purchasing.

The above is the relevant content about the advantages and disadvantages of energy-saving lamps and LED lamps. Although LED has many advantages, it cannot completely replace incandescent lamps. The price of incandescent lamps is cheaper than LED lamps. With the development and progress of technology, energy-saving lamps and LED lamps They are constantly being improved and upgraded to give owners more choices.

How to solve the problem of LED lamps flickering?缩略图

How to solve the problem of LED lamps flickering?

As a new type of lighting equipment, LED lights have been widely used, and the trend of replacing other light sources is becoming more and more obvious. But it is undeniable that as far as the current technology is concerned, stroboscopic LED lamps are common. So, how do we ordinary people solve the stroboscopic problem?

How to solve the problem of LED lamps flickering?插图

First of all, what is the strobe of a lamp?

According to tBaidu Encyclopedia's explanation, stroboscopic means looking at the screen of one electrical appliance on the screen of another electrical appliance. On the screen of the other electrical appliance, a bright line will move from the bottom to the top of the screen, and then appear from the bottom again. If this goes on indefinitely, it gives us the feeling that the image is flickering.

Art lamp with LED light source installed

This explanation in the encyclopedia is too technical. Zhihu author: Shrugged The author thinks the definition of stroboscopic is relatively easy to understand: stroboscopic, flickering with frequency, and the rapid and repeated changes of light over time are called stroboscopic, directly The feeling is that the image is jumping and unstable.

Second, to what extent do LD lamps/light sources flicker and have an impact on our human body?

Most people can perceive strobes below 50 or 60 Hz. When the frequency reaches a certain level, the human eye will regard the flickering light as a continuous source. This frequency is called the "critical flicker frequency" (CCF).

CCF varies from person to person and in different situations for the same person, but most people have CCF values that do not exceed 100 Hz. Many people feel very uncomfortable when faced with strobes below 50/60 Hz, and some people are still uncomfortable between 50-100 Hz. So what frequency is needed to eliminate this effect? It varies from person to person, some say 160 Hz, 200 Hz, and some say 500 Hz, but the industry believes that there is no problem if it reaches kilohertz (KHz).

How to solve the problem of LED lamps flickering?插图2

Small LED chandelier

Third, what are the hazards of LED lamps/light source stroboscopic

Studies have shown that varying degrees of stroboscopic effects on people's physiology and psychology, of course, are mostly negative, such as damaging vision, irritability, and inducing epilepsy. for example:

1. For sports venues that require lighting at night, such as billiards halls, table tennis halls, badminton halls, tennis halls, etc., the sports balls cannot be seen clearly due to flickering lights;

2. When taking photos and videos, if you use flashing lights, it will be impossible to avoid dark areas during photography and black scroll bars when filming;

3. Including strain fatigue, eye fatigue, blurred vision, migraine and vision loss;

4. The effect of low-fluctuation high-frequency flashing is not obvious, and migraine or severe headache may occur within a few minutes, often accompanied by symptoms such as nausea and visual disturbance;

Fourth, the reasons why LED lamps/light sources flicker

Most light sources have stroboscopic effects, but the degree varies. LED stroboscopic is largely not a problem with the LED chip itself, but comes from the driving and dimming components. Common causes of stroboscopic are:

1. Inferior driving components cannot reduce the "voltage and current output ripples" generated in the process of "converting from AC to DC" and from the driving components to the LED chip.

1. Inferior quality dimming components, either poor compatibility, or using low-frequency PWM dimming.

Fifth, are there any LED lamps/light sources that do not flicker?

It is impossible to be flicker-free in an absolute sense. The Chinese industry standard’s flicker requirement for qualified products is 3125Hz. From a professional point of view, the exact name of "no stroboscopic" is "imperceptible stroboscopic". According to the "stroboscopic" requirements of the China Quality Certification Center for reading and writing desk lamps, "fluctuation depth" is a measure of the "stroboscopic" of desk lamps. ” standard value.

LED lamp beads, patches

Take table lamps as an example. The national standard requires that the fluctuation depth of table lamps be less than 3.2% to be qualified. However, it turns out that many so-called "eye protection table lamps" on the market have fluctuation depths of more than 3.2%, which means that most of them do not "protect the eyes". Eyes".

Finally, what should we ordinary consumers do when faced with strobe?

As mentioned before, there are currently no lamps that are flicker-free, so we can only choose lamps with flicker within the acceptable range as much as possible.

1. It is recommended not to buy low-priced and low-quality LED products without any three certificates. Try to buy regular brand lamps and light sources.

2. Try to purchase lamps and light sources certified by the China Quality Certification Center (CQC).

3. The daylight lighting system can be used to introduce outdoor natural light into the room. After the natural light is processed by the system, it will not only be flicker-free and will not cause harm to human eyes, but will also block most of the ultraviolet and infrared rays. The light will be soft, the illumination is uniform, warm and comfortable. , let us bathe in natural light with peace of mind and return to nature.

Postscript: Lighting design is not about choosing lamps. It is a job that is both technical and artistic. If you really don’t have the time and expertise, you can consult recolux for free.