Why can t LED street lights achieve the lowest power and higher light efficiency?

The reason why LED street lights cannot achieve the lowest power and higher light efficiency is mainly due to the following reasons:

First of all, the minimum power of LED street lights is limited by the circuit design. The circuit design of LED street lights needs to take into account the stability of the current and the change of voltage to ensure the normal operation of the LED. In the case of low power, the stability of the current is more difficult to guarantee, so a certain amount of power is required to maintain the stability of the circuit.

Secondly, the luminous efficiency of LED street lamps is limited by the characteristics of LED chips. The luminous efficiency of an LED chip refers to the brightness of the light emitted per unit of power. Although the light efficiency of LED chips is already relatively high, there is still a certain loss.

In the case of low power, the luminous effect of the LED chip will be affected due to the small current, resulting in a decrease in the luminous efficiency.

In addition, the light efficiency of LED street lights is also affected by heat dissipation problems. LED chips generate heat when working, and if the heat dissipation is poor, it will cause the temperature of the LED chip to rise, which in turn will affect the light efficiency. In the case of low power, due to the small current, the heat generated is relatively small, and the heat dissipation problem is more prominent, which further reduces the light efficiency.

Finally, the minimum power and luminous efficiency of LED street lights are also affected by market demand and cost. In practical applications, LED street lights need to meet certain lighting requirements, so they need a certain amount of power to provide sufficient brightness. At the same time, in order to reduce costs, manufacturers will also balance power and light efficiency to meet market demand.

To sum up, LED street lamps can not achieve the lowest power and higher light efficiency, mainly due to the limitations of circuit design, LED chip characteristics, heat dissipation problems, market demand and cost and other factors. With the continuous advancement of technology and the reduction of cost, it is believed that the power and light efficiency of LED street lights will gradually increase.

Because LED street lights have always been under the authoritative control of chips and power supplies.

At present, the actual situation of LED street lamps is not ideal, I personally feel that the statement is not valid for authoritative control of chips and power supplies, there is no problem with domestic procurement of high-quality LED chips, and there are many foreign-owned, Taiwan-funded or joint venture LED packaging enterprises in packaging technology, and the technology of packaging LED lamp beads is not a problem. Even if the purchase of lamp beads back to assemble, it does not mean backward, after all, the division of labor meets the needs of technology and productivity development, the industry has a specialization, in order to do more professional, higher labor efficiency, lower cost, professional packaging factory only care about chips and packaging technology, the use of automated machinery, a batch of materials on hundreds of thousands of kk, if each street lamp manufacturer has its own packaging LED lamp beads, do hundreds of thousands of street lamps to use how many lamp beads? Quality and cost are not controlled.

As for the authoritative control of the power supply, I don't understand? Is the power supply still an issue? Domestic switching power supply manufacturers seem to have reached the white heat competition has long been white-hot, it is very good to be profitable, and it can be controlled?

There may be room for improvement in conversion efficiency.

At present, LED can not fully enter the lighting market, including the street lamps asked, because the LED technology itself is not mature, light efficiency, heat dissipation, packaging technology, white LED technology. In this regard, the West and Japan are at the forefront, many things are still in the laboratory stage, or launched but the cost is high, there is no way to enter the civilian market, there are only some chip cutting or low-end chip R & D enterprises in China, and most of the others are downstream packaging and lamp assembly enterprises. LED street lamps can not do a good job, the key is when LED chips and white LED technology can be developed to higher light efficiency, lower cost, the so-called domestic R & D institutions and departments, has not yet entered the qualification of this game, and our private enterprises, in the field of packaging and assembly has been fully prepared.

No, I'm doing led light factory direct sales! The producers you're talking about are just small workshops! The characteristic of the LED light is that it uses a low-voltage power supply, and the power consumption is between 6-24V, which is safer and more reliable than the high voltage.

The energy consumption is 80% less than that of incandescent lamps with the same light efficiency, relatively speaking, it is an environmentally friendly energy-saving lamp with the lowest power consumption to achieve the highest light efficiency, perhaps because of the quality problem.

The key to the quality of the products produced by an enterprise is the mastery of the core technology and the ability to control the process. Can we say that the planes of Boeing and Airbus are bad?

Maybe the current technology hasn't reached what you want.

As long as the lamp beads, the constant current source and the heat dissipation meet the requirements, it can be.

Your question is not the same thing. Shenzhen Zuohao Technology ****.

Summary. LED lights of the same wattage. The brightness is different.

1. As long as the power is the same (high-power LEDs are much more expensive, false standards are very common, and virtual standards are not considered here), the power consumption is the same. 2. There are two situations with different brightness and the same power, one is that the total luminous power is different, but the irradiation area is different, and the brightness is naturally different (you can understand the long-range flashlight); The second is that the power is the same, but the efficiency is different, for example, the same 10W equipment, the LED luminous efficiency is 60%, the actual light source power is 6W, the energy-saving lamp is usually only 2-3W, and the actual light power of the incandescent lamp is only 1W, so the brightness is of course different. There is a certain difference in the luminous efficiency of different LEDs, but there is no difference of order of magnitude.

LED lights of the same wattage. The brightness is different, so is the degree of power consumption the same? Or is it the kind of brightness that consumes more electricity?

LED lights of the same wattage. The brightness is different. 1. As long as the power is the same (high-power LEDs are much more expensive, false standards are very common, and virtual standards are not considered here), the power consumption is the same.

2. There are two situations with different brightness and the same power, one is that the total luminous power is different, but the irradiation area is different, and the brightness is naturally different (you can understand the long-range flashlight); The second is that the power is the same, but the efficiency is different, for example, the same 10W equipment, the LED luminous efficiency is 60%, the actual light source power is 6W, the energy-saving lamp is usually only 2-3W, and the actual light power of the incandescent lamp is only 1W, so the brightness is of course different. There is a certain difference in the luminous efficiency of different LEDs, but there is no difference of order of magnitude.

The degree of electricity consumption is the same, and the difference in brightness is caused by the different density of the astigmatism material applied on the wall of the bulb, so you can choose a bulb that you think has the right brightness. Don't have, the choice is difficult. I hope this article of mine can be helpful to you.

It's not easy to be serious, and I hope you'll be done.

Refer to Bright Room Lighting.

LED street lamps are different from conventional high-pressure sodium lamp street lamps, and the light source of high-power LED street lamps adopts low-voltage DC power supply, high-efficiency white light diodes synthesized by GaN-based power blue LEDs and yellow phosphors, which have the unique advantages of high efficiency, safety, energy saving, environmental protection, long life, fast response speed, high color rendering index, etc., and can be widely used in urban road lighting. The cover can be made of PC tube, which can withstand high temperature up to 135 degrees Celsius and low temperature resistance up to -45 degrees.

Compared with LEDs, high-pressure sodium lamps are first of all lower in CRI, the color is dim yellow, and the color distortion is more serious; In fact, the light efficiency of high-pressure sodium lamps is far less than that of 100-120lm W, considering attenuation and other factors, 1W LEDs can replace 2-3W sodium light sources.

The reason for saving power lies in the efficiency of the driving circuit, the power factor, the drive of high-pressure sodium lamp has inductive and electronic, the efficiency of inductive is less than 60%, and the efficiency of electronic is less than 80%, which is a thermal light source, which can radiate heat.

The LED drive can easily achieve more than 90%, and the circuit is simple and stable. However, because LED is a cold light source, it turns 90% of the electrical energy into heat, and it is not easy to solve the heat dissipation, such as the heat sink of the 700W LED lamp is much larger than the 700W high-pressure sodium lamp radiator.

According to the brightness, it is best to configure it in a 1:1 configuration, but LED80W is equivalent to 150W sodium lamp.

A 100W LED street light is equivalent to a 150W high-pressure sodium lamp.

LED lamps of ordinary quality level are generally similar to energy-saving lamps.

Because from the perspective of the technology of producing energy-saving lamps, the light efficiency of current energy-saving lamps can basically reach 60lm w or higher. The ordinary quality level of LED lights, the general light effect is only about 60-80lm W, and the good quality level of light effect is more than 100lm w, but in order to solve the problem of blue light effect or glare, most of them are equipped with a layer of protective lampshade, which weakens the light effect of LED lights. Therefore, in terms of light efficiency, LED lamps of the same power are basically the same as energy-saving lamps, so only from the perspective of "lighting power saving", LED lamps of ordinary quality level are almost the same as energy-saving lamps.

Yes, first of all, the life span is a little longer than that of energy-saving lamps.

Now there are many types of bulbs, from the installation method, power size, lighting methods have different types, there are many choices, but for some people who do not know the bulb, the choice is very tangled, take LED lights and energy-saving lamps as an example, many people do not know which of the two is better.

Summary. Hello dear! We'll be happy to answer for you.

What factors affect the power of LED energy-saving lamps? Answer: Hello dear, there is no specific national standard for LED, according to industry regulations, the power factor of lamps below 5W is not required, and more than 5W should reach more than 70%.

Nowadays, the lamps are made according to the customer's requirements, for example, the power supply department where the customer is located requires how much power factor. The power factor is the ratio of active power to apparent power, and if the power factor is low, it means that the reactive power of the circuit is large. The lower the power factor, the heavier the load on the power supply equipment and the more unstable the power grid.

Specifically, lamps with low power have a lower power factor and have little impact on the power grid, because the power is small, so it will not cause any harm. If the power factor of high-power lamps is low, the impact on the power grid will be great, because the power is large, which may cause: large equipment loss, overload of power equipment, unstable power grid, harmonic pollution, etc.

This has nothing to do with the power of the lamp, so the manufacturer consciously makes it high, and it is also related to the requirements of customers.

Hello dear! We'll be happy to answer for you. What factors affect the power of LED energy-saving lamps?

Answer: Hello dear, there is no specific national standard for LED, according to industry regulations, the power factor of lamps below 5W is not required, and more than 5W should reach more than 70%. Nowadays, the lamps are made according to the customer's requirements, for example, the power supply department where the customer is located requires how much power factor.

The power factor is the ratio of active power to apparent power, and if the power factor is low, it means that the reactive power of the circuit is large. The lower the power factor, the heavier the load on the power supply equipment and the more unstable the power grid. Specifically, lamps with low power have a lower power factor and have little impact on the power grid, because the power is small, so it will not cause any harm.

If the power factor of high-power lamps is low, the impact on the power grid will be great, because the power is large, which may cause: large equipment loss, overload of power equipment, unstable power grid, harmonic pollution, etc. This has nothing to do with the power of the lamp, so the manufacturer consciously makes it high, and it is also related to the requirements of customers.

Is the resistance of a bulb affected by temperature, humidity, and age? Does this cause a change in power?

The filament resistance of the bulb increases with the increase of temperature, and if the voltage at both ends of the bulb remains the same, it can be analyzed that the electrical power of the bulb decreases with the increase of temperature according to the analysis of the electrical power equal to the square of the voltage divided by the resistance.

Do humidity and the aging of the bulb affect the electrical resistance and therefore the actual power of the bulb?

Will kiss.

Summary. Hello, as long as the power is the same, then although the brightness of these two bulbs is different, but it consumes the same amount of power.

LED lights of the same wattage. The brightness is different, so is the degree of power consumption the same? Or is it the kind of brightness that consumes more electricity?

Hello, as long as the power is the same, then although the brightness of these two bulbs is different, but it consumes the same amount of power.

The brightness is different, the power is the same, this is related to the lamp beads used in the bulb, and the brightness of different lamp beads is different.

Are you talking about yellow light and white light?

Hello, is the same with the night light.

Same. The same goes for the electricity used to light the night light.

It's not the same. I'm talking about the fact that the principle is the same.

The electricity consumption is definitely not the same, and the night light definitely reduces the brightness of the pearls and the number of lamp beads.

Because this kind of ceiling lamp is LED lamp, the lamp beads inside are hundreds of lamp beads.