Why does LED lighting have a strong energy saving advantage and can save 90 more energy than incand

When an incandescent lamp is lit, in addition to the filament glowing to illuminate, it is accompanied by a large amount of heat, which is generated by the current through the filament and is wasted in vain, so the luminous efficiency of the incandescent lamp is very low. LED has a very low heat generation, and most of the electrical energy is converted into light energy, so the luminous efficiency is very high, compared with the incandescent lamp of the same illumination, it can be achieved with less electrical energy, to achieve the purpose of energy saving. As for whether the energy saving is 90%, it can not be concluded, which has a lot to do with the choice of LED, but the energy saving of more than 70% is certain, and most of them can be more than 80%.

LED and so on have many advantages, these information on the Internet a lot, no longer verbose, but it also has disadvantages, the main spectral characteristics and sunlight are very different, the spectrum is cold, people are a little uncomfortable; Secondly, the LED is still hot, but it is not as big as the incandescent lamp, and the heat dissipation problem cannot be solved well; Third, it belongs to low-voltage DC work, which must be equipped with a power converter, which also offsets part of the energy-saving effect to a certain extent; Fourth, LED is a point-emitting directional light source, the spot phenomenon is obvious, and the light field is not easy to be uniform. In the future, if these problems can be better solved, I believe that the advantages of LED will be more prominent, and consumers will be more welcome into our lives.

Because the light source of LED lighting is a cold light source, most of the current is converted into light, while only a small part of the tungsten wire of the incandescent lamp is converted into light, and most of it is converted into heat and consumed. Now LED lighting can do 140LM W, while incandescent lamps are only 8LM W. Compared to consuming the same amount of electricity, LED lighting can get more brightness.

This is mainly the law of energy, incandescent lamps have too much heat, and LEDs are relatively smaller, so they are energy-saving.

People's understanding of LED is still relatively shallow, in addition to **, there are still such and such doubts about the application of LED, among which some viewers expressed their concerns about the impact of LED light on the eyes to reporters. In terms of applications, the application of LED display and LED backlight has been widely recognized, but there are still very few in home indoor lighting.

Although some people have the will to use it and will want to take the initiative to buy, ** is still an important factor for people to pay attention to, and of course this is also a problem that the industry has been trying to solve. However, people still have confidence and expectations for LEDs, which is something to be happy about.

The incandescent lamp is the tungsten lamp we used to use, the tungsten filament emits heat when it is energized, and the spectrum is natural light, which protects the eyesight but consumes electricity. Energy-saving lamps are the gases in the lamp tube that fluoresce after being energized, the heat is very small, the light emitted is frequent, and the spectrum is a single light, which is harmful to vision but energy-saving. LED lights are light-emitting diodes with small size and long service life.

In terms of service life, LED lamps are larger than energy-saving lamps, and energy-saving lamps are larger than incandescent lampsIn terms of **, LED lamps are larger than energy-saving lamps and energy-saving lamps are larger than incandescent lamps;In terms of energy consumption, incandescent lamps are larger than energy-saving lamps, which in turn are larger than LED lamps. Which is the best, it depends on which aspect you consider, if it is the service life, you can consider the LED light.

Both incandescent lamps and energy-saving lamps convert electrical energy into light energy after converting it into heat energy, while LEDs convert electrical energy directly into light energy. So LED lights are the most energy-saving, the most energy-saving, and the best choice.

Under the same illuminance and voltage, the power consumption of three lamps.

Know what is the difference between energy-saving lamps and LED lights?Which light is best?Energy-saving lamps are more energy-saving, LED lighting is smaller than white lights, and white lights are larger.

In our daily lives, we are often exposed to concepts such as incandescent lamps, fluorescent lamps, energy-saving lamps and LED lamps. But do you really understand the difference between these lights?Do you know how each one works?

Do you know their pros and cons?What about being more energy-saving and environmentally friendly?First of all, we must first understand the characteristics of these kinds of lights.

Incandescent lamps

Incandescent lamp, also known as electric bulb, its working principle is that when the current passes through the filament (tungsten filament, the melting point reaches more than 3000 degrees Celsius), the spiral filament continues to gather heat, so that the temperature of the filament reaches more than 2000 degrees Celsius, and the filament emits light when it is in an incandescent state, just like the red-hot iron can shine. The higher the temperature of the filament, the brighter the light emitted. Therefore, it is called incandescent lamp.

When an incandescent lamp emits light, a large amount of electrical energy is converted into heat, and only a very small fraction (probably less than 1%, not calculated) can be converted into useful light energy.

The light emitted by incandescent lamps is panchromatic light, but the composition ratio of each color is determined by the luminescent substance (tungsten) and temperature. The imbalance in proportions leads to a color cast in the light, so the color of the object is not realistic under incandescent light.

The lifespan of an incandescent lamp is related to the temperature of the filament, because the higher the temperature, the easier it is for the filament to sublimate. The blackening process at both ends of the fluorescent lamp is: the sublimation of tungsten filament directly becomes tungsten gas, and these tungsten gases encounter the lower temperature of the lamp wall and condense on the lamp wall and blacken, when the tungsten filament sublimates to a relatively thin and thin one, it is easy to burn off after being energized, thus ending the life of the lamp.

So the more power the incandescent lamp has.

LED lamp, also known as light-emitting diode, is a solid-state semiconductor device that can directly convert electricity into light. The heart of an LED is a semiconductor wafer with one end attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the entire wafer is encapsulated by epoxy resin. A semiconductor wafer is made up of three parts, one is a p-type semiconductor, in which holes dominate, and the other end is an n-type semiconductor, which is dominated by electrons here, and in the middle is usually a quantum well with 1 to 5 cycles.

When an electric current is applied to the wafer through the wire, the electrons and holes will be pushed towards the quantum well, where the electrons will recombine with the holes, and then emit energy in the form of photons, which is the principle of LED luminescence.

LED lamps have many advantages such as small size, low power consumption, long life, non-toxic and environmental protection, LED lamps and lanterns have gradually developed from outdoor decoration, engineering lighting, to household lighting.

On the whole, LED is more energy-saving and environmentally friendly, but for individuals, the ** of LED is higher, and the ** of an LED lamp may be several times that of an incandescent lamp.

In terms of service life and energy savings, incandescent lamps are slightly inferior to energy-saving lamps and LED lamps. According to the "Science and Technology**" report, under the premise of achieving the same lighting effect, energy-saving lamps have lower power consumption and higher life than incandescent lamps, and their power consumption is 1 5 times that of incandescent lamps, and their life is 6 times higher.

According to the "Shanxi**" report, LED lamps also have lower power consumption and longer life than incandescent lamps, LED lamps with the same brightness are 80% more energy-efficient than incandescent lamps, and the average life is 25 times longer than incandescent lamps.

LED fluorescent lamps save more than 80% of electricity compared with incandescent lamps, and the life span is more than 10 times that of ordinary lamps, which is almost maintenance-free, and there is no problem of replacing lamps, ballasts and brighteners frequently.

For example, a 3W bright LED light is brighter than a 15W incandescent bulb

W bright LED: 1000 hours of operation, power consumption is 3 kWh (kWh).

Incandescent bulb: 1000 hours of operation, power consumption is: 153 kWh (kWh).

3. The difference in power consumption between two people who work for the same 1000 hours: 15-3 = 12 kWh (kWh).

Since the invention of electric light, people's life and production have been much more convenient, and human work efficiency has also improved a lot. At present, the bulbs used by people mainly include white woven lamps, energy-saving lamps and LED lamps, so do you know which of these lamps is better? What is the difference between them?

The white woven lamp is the earliest light bulb invented by human beings, when Edison discovered that electricity can be converted into light energy, and after countless experiments, he finally invented the white woven light bulb. His luminescence principle is to use the light produced after the conductor is energized, heats up and then burns the filament red, but this luminous method is very energy-saving and unscientific. He first converts electrical energy into heat energy, and then converts it into light energy, and the whole process will consume a lot of electrical energy, so the use of such a bulb will be more power-consuming, and the service life of the lamp is shorter, but this kind of bulb ** is relatively low, because its light is closer to the sun, so the color rendering is also relatively high.

Although the energy-saving lamp has a long service life, it is also relatively energy-saving, and the brightness of the 15-watt energy-saving lamp is about the same as that of a 100-watt white woven lamp. However, it has poor color rendering. You will find that if you look under the white lamp and the energy-saving lamp, the white lamp will be more comfortable, and it is not environmentally friendly to have mercury in it.

LED lamp mainly uses semiconductor materials to emit light, the efficiency of luminescence is very high, the service life is also very high, and there is no radiation, there will be no pollution, it is a more ideal lamp, but the cost is too high.

LED lamps have low working voltage, high luminous efficiency, and high color temperature. Incandescent lamps use electric current to heat the filament and emit light, and most of the electrical energy is turned into heat energy and lost, so the luminous efficiency is low and the energy consumption is high. `

LED light source consumes less power; LED light source has a long service life; Energy saving is the main reason why we consider using LEDs, perhaps LEDs are more expensive than traditional light sources, but with one year of energy saving to recover the investment of light sources, so as to obtain 4-9 years in the annual energy saving net cover period of several times.

Under the current social theme of environmental protection, LED lamps are obviously more energy-saving and environmentally friendly than incandescent lamps, because incandescent lamps have a short lifespan, high energy consumption, and waste of resources.

Under the same illuminance and voltage, the power consumption of three lamps.

What is the difference between energy-saving lamps, incandescent lamps, and LED lights, and which one is better? Today is a long time to see.

Advantages of LED energy-saving lamps compared to traditional lamps:

1. LED energy-saving lamps are highly efficient and energy-saving: lights in modern society are indispensable tools in people's lives, so the consumption of energy is also very large. Comparison of several lamps that consume the same 1 kilowatt-hour of electricity while emitting the same brightness.

A. LED energy-saving lamp only needs 3W and can be used for 333 hours;

b. Ordinary incandescent lamps need 60W to work, but they can only be used for 17 hours;

c. Ordinary energy-saving lamps need 10W to achieve the same brightness, and 1 kWh of electricity can be used for 100 hours.

As can be seen from this, LED energy-saving lamps can save at least 3 times more energy than ordinary energy-saving lamps.

2. LED energy-saving lamps have a long service life: LED energy-saving lamps emit light through semiconductor chips, no glass bubbles, not afraid of vibration, not easy to break, and have a service life of up to 50,000 hours. Compared with the production of ordinary light bulbs (1000 hours of use), it is 50 times the length of its use; Compared with the energy-saving lamp (8,000 hours of use), it is more than 6 times that of it.

It's the obvious super boss.

3. LED energy-saving lamps are green and environmentally friendly, and the use is healthy: LED energy-saving lamps themselves do not contain harmful elements such as mercury and xenon, and will not produce electromagnetic radiation and harmful rays.

a. Ordinary lamps contain elements such as mercury and lead, and harmful radiation such as external and infrared rays are generated when the power supply passes;

b. The electronic ballast in the energy-saving lamp hail will produce electromagnetic interference, which is also not conducive to health.

4. High light conversion rate: 90% of the electrical energy of LED energy-saving lamps is converted into light energy, while only 20% of ordinary bulbs are converted into light energy.

5. LED energy-saving lamps are safe and more widely used: LED energy-saving lamps require small voltage, small current, and less heat, and can be directly used in remote places such as sunlight power supply and field lighting, without geographical restrictions.

LED lamps are more energy-saving than energy-saving lamps, but there is a single spectrum, and there are no LED lamps with three primary colors, and with the increase of the power rolling potato carrying rate, the heat dissipation problem is more prominent, so the high-power LED lamps are still not good, but if they are used as street lights in the dormitory area or corridor lights, family night lights or something are still very advantageous, and there is also a LED lamp that is still expensive in the hidden sail. The big one.

Summary. There are also LED lights, its advantages are, in fact, it is a light-emitting diode, small size, low power consumption, long life, non-toxic and environmentally friendly, generally used for outdoor decoration, engineering lighting, and now gradually turned to indoor lighting. The disadvantage is that LED lamps are more expensive and require constant current power to maintain, and if the heat dissipation is not handled well, it will also cause light decay.

In addition to incandescent lamps and energy-saving lamps + what are the commonly used lighting lamps + what are the advantages and disadvantages.

There are also LED lights, its excellent sail is big, in fact, it is a light-emitting diode, small size, low power consumption, long life, non-toxic hall erection and environmental protection, generally used for outdoor decoration, engineering lighting, and now gradually turned to indoor lighting. The disadvantage is that LED lights are more expensive, and they need a constant current power supply to maintain, and if they are not handled well, they will also cause light decay.

There is also the advantage of fluorescent lamps is that they are the same as incandescent lamps, and fluorescent lamps also have an alias that we are familiar with, that is, fluorescent lamps. The difference between fluorescent lamps and incandescent lamps is that they are very energy-efficient, and 60% of the electricity consumed can be converted into ultraviolet light, and the remaining 40% will be converted into heat. And the conversion of ultraviolet light to visible light is twice as efficient as that of tungsten filament lamps of the same power.

The disadvantage is that mercury is produced in the production of fluorescent lamps and causes pollution. In addition, the color rendering performance is average, and it is easy to affect vision.