Do LED lights save electricity or consume electricity? Listening to the insider, I realized that I was wrong
With the rapid development of technology, LED lamps have replaced traditional incandescent lamps and become the main choice for lighting in homes and public places.
However, some consumers still have doubts about whether LED lamps are energy-efficient, believing that LED lamps cost electricity.
So, do LED lights save electricity or do they cost electricity?
Before we dive in, let's take a look at how LED luminaires work and how they have evolved.
The working principle and development process of LED lamps.
LED，Light Emitting Diode的缩写，即发光二极管。
It is a semiconductor device in which when an electric current is passed, electrons combine with holes to release energy that radiates in the form of light and heat.
This luminous principle makes LED luminaires have the advantages of high brightness, low energy consumption and long life.
According to statistics, compared with traditional incandescent lamps, the power consumption of LED lamps with equivalent brightness is about 70% lower.
This means that even under the same lighting conditions, the electrical energy required to use LED luminaires is much less than that of incandescent luminaires.
However, this bright spot still has seeds of doubt planted in the minds of some consumers.
Some consumers have reported that after replacing the LED lights, their electricity bills have not been significantly reduced as expected.
For this phenomenon, we need to analyze it rationally.
Home lighting isn't the only power drain.
There are also various electrical appliances in the home, such as refrigerators, air conditioners, computers, etc., which tend to consume much more electricity than a single light fixture.
Even if the LED fixtures are replaced, the overall reduction in electricity bills may not be as significant as expected.
The timing of a consumer's choice to replace a new light fixture may also affect the perception of electricity bills.
In summer or autumn, people may spend less time turning on their lights at night due to longer hours of natural light, which will result in a short-term reduction in electricity bills.
In winter, people feel a rebound in their electricity bills as natural light hours are drastically reduced and the amount of time they spend using lamps at night increases.
With such seasonal fluctuations, it is easy to mistake people for saving electricity after replacing a new lamp.
Learn about the energy-saving benefits of LEDs compared to traditional lighting tools.
To understand whether LED lamps are power-saving or power-efficient, we need to compare and analyze the energy efficiency differences and advantages between traditional lighting tools, including incandescent, fluorescent and halogen lamps, and LED technologies provided by the latest technology.
1. Incandescent lamp: high energy consumption and short life.
The incandescent lamp was the first widely used lighting tool, and it emitted light by heating a tungsten filament.
However, this technology has two major drawbacks: high energy consumption and short life.
Typically, a 60-watt incandescent lamp consumes 60 watt-hours (Wh) of electricity per hour, while its luminous flux is only about 800 lumens, which means it is less energy efficient.
In addition, due to the long-term heating of tungsten filament, the average life of an incandescent lamp is generally about 1000 hours, and once this time is exceeded, it will fuse or significantly reduce the brightness.
2. Fluorescent lamps: energy-efficient but contain mercury.
Compared with incandescent lamps, fluorescent lamps use a different luminescence principle, which achieves the illumination effect by excitation of the phosphor coated gas inside the tube to emit ultraviolet light, and then the phosphor emits light.
This technology greatly improved energy efficiency, typically around 15-25 watts, but was able to provide a luminous flux close to 600-800 lumens, which made it widely accepted and used at the time.
However, fluorescent lamps also have a significant problem, namely the presence of mercury, a toxic metal.
Each fluorescent tube contains trace amounts of mercury, so it can pollute the environment when broken or discarded, which calls into question its environmental protection.
3. Halogen lamp: Increases brightness but still consumes electricity.
Halogen lamps can be said to be an improved version of incandescent lamps, which add some iodine or bromine elements around the tungsten filament, which not only maintains the luminous temperature of the tungsten filament, but also improves the brightness and efficiency.
Although it is more energy-efficient than ordinary incandescent lamps, halogen lamps are still not comparable to modern LED technology, which typically ranges from 28 to 50 watts but provides similar or even higher luminous flux.
In addition, halogen lamps still use traditional energy sources to generate heat, which does not completely solve the problem of low energy efficiency.
4. LED technology: subvert the traditional lighting concept.
LED technology has revolutionized the traditional lighting concept, achieving high efficiency and energy efficiency through the principle of solid-state luminescence.
Mainstream LED products on the market are dominated by 5-10 watt power, but they can produce similar or even more lumens count, for example, a 9-watt LED can provide more than about 1000 lumens of luminous flux, which is several times more energy efficient in comparison.
What's even more impressive is that LED technology also offers a variety of options, including different color temperatures, dimming functions, etc., to meet the diverse needs of consumers.
Insider's Statement: Why is LED Power Saving?
1. Excellent conversion efficiency and long-term durability.
Insiders generally believe that a good LED can convert a large amount of input electrical energy into usable lighting as long as the import has proven itself well to build a high conversion rate, which is the key.
Superior conversion efficiency means that even at lower wattages, sufficient and uniform brightness is produced to provide ideal illumination for indoor and outdoor spaces, which is one of the key reasons why users enjoy a power-saving experience.
For example, a 10W top-grade imported LED can replace 50W-60W ordinary halogen lamps, which can save 70%-80% of electricity consumption at the same brightness, and more importantly, it is durable, not easy to damage, and can last for many years, greatly reducing the replacement cost and frequency, so as to achieve more far-reaching economic benefits.
2. The power-saving effect brought by intelligent management and personalized customization technology.
In addition, the high-end brand is also equipped with a more advanced and intelligent management system, which not only allows users to freely adjust the brightness according to the needs of the scene, but also automatically adjusts the power output according to environmental changes, realizing on-demand lighting in the true sense of the word, and greatly reducing unnecessary waste.
For example, when there is plenty of natural light, the artificial lighting in the room can be lowered or turned off, and at night or in rainy weather, the brightness can be automatically increased to meet demand, which is not comparable to ordinary conventional lighting.
For different customer groups, high-end imported brands have also launched a series of personalized customization services, through the scientific assessment of customer scene needs, tailor-made optimal solutions for them, so as to avoid unnecessary energy waste, to maximize the energy saving effect, such as shopping malls, supermarkets, offices and other public places, can be reasonably distributed according to the flow of people to each LED power required.
How to effectively identify high-quality power-saving LEDs?
In the face of a dazzling array of LED products on the market, how should consumers effectively identify high-quality, power-saving products?
First, it is necessary to check the detailed parameters and certification marks, such as internationally recognized standard SGS certification or domestic CCC certification, etc., which are an important basis for measuring product quality, which can effectively avoid buying inferior products.
The second is to pay attention to after-sales service and warranty policy, high-end brands usually provide 3 years or even 5 years of warranty commitment, which not only reflects the confidence in their own product quality, but also provides protection for consumers to buy, helping consumers to make informed decisions.
The third is to try to choose big brands or well-known manufacturers to produce products, not only product quality is guaranteed, but also to enjoy more preferential activities and services, in addition to referring to the use of other people's evaluation and evaluation results to understand its actual performance and effect, so as to help themselves make more scientific and reasonable purchase decisions, improve the quality of life and achieve real savings.
Summary and prospects: Make life better and save money!
To sum up, high efficiency, energy saving, environmental protection and durability are important needs of modern home lighting, and high-quality, money-saving, worry-saving and labor-saving new LEDs just meet these requirements, greatly improving people's dissatisfaction with traditional lighting tools, so that everyone can enjoy the convenience brought by scientific and technological progress, making life better and saving money!
Looking forward to the future, with the continuous progress of science and technology, it is believed that more innovative, cost-effective and high-safety lighting products will be launched to make our living environment better, and at the same time, provide more ways to save money, and contribute to the sustainable development of society.