1. How do you think about the problem of saving energy-saving lamps for one year?

If a manufacturer promises to keep it for 1 year, then its design life should be more than 2 years. We often say that it is guaranteed for 1 year, which means that I can guarantee you to use it for at least 1 year. In fact, a product has a problem. It will light up at the beginning, or it will be lit for about three months. If there is no problem, it can generally use the life of the product.

2. Why does the energy-saving lamp plastic turn yellow when it is ignited for a while?

Plastic yellowing is a basic characteristic of plastics. There are many reasons for yellowing of plastics, but one of the most important reasons is the influence of ultraviolet rays. PBT materials are no exception. Because of the process of lighting, ultraviolet rays are generated in the lamps. Ultraviolet radiation plastic makes it yellow. Of course, we can add some UV-resistant materials to the plastic, but this only extends the yellowing time. It will still turn yellow after a long time. However, the yellowing of plastic does not affect some of the basic properties of plastics such as high temperature resistance and flame retardancy.

3. How to judge whether an energy-saving lamp has its components combined firmly?

Since we don't have a special instrument like a lab in real life, we can only observe it from the naked eye and some simple actions to judge it. When we judge the firmness of the combination of the lamp cap and the plastic part, we first look at whether there is a gap between the lamp cap and the plastic part. The gap size is reasonable, the hole of the lamp cap is shallow, then we hold the lamp cap with one hand, one hand Hold the plastic part and screw it by hand. If it can be unscrewed, the combination of the lamp head is not strong.

When we judge the degree of firmness between the lamp and the plastic part and the upper and lower parts, we can also observe it first, then hold the upper and lower sides of them, gently shake and pull, this force can not be too big, nor can it Too small to see if they are loose.

4. How to judge the color rendering index of energy-saving lamps?

We can light the lamp and shine it on the palm of the hand. The palm of the hand is ruddy and bloody, indicating that the product has a high color rendering index. Similarly, if the color rendering index is low, the palm of the hand appears blue and bloodless.

We can also put a colored object under different lights to compare your feeling of color, and how much you feel about the color of the same object under the glory of the light, you can also judge the color rendering index of a lamp. High and low.

5. Determine the luminous flux and luminous efficacy of energy-saving lamps?

Judging whether an energy-saving lamp is energy-saving, is the energy-saving effect obvious? In the absence of an instrument, we can only feel it bright or not by the eyes. If there is a comparison, it is better, you can light the energy-saving lamp of the same power. Look at how bright they are (of course one of them thinks that the quality is better, the price is higher, the other is bad quality, the price is cheap), the good energy-saving lamp products have high brightness, even you will feel A glaring feeling, a poor energy-saving lamp like a candle, or like a T12 fluorescent tube, even worse.

Electronic energy saving lamp market situation

After nearly 20 years of continuous exploration and development, China's energy-saving lamp products have made great progress and improvement. Many products have approached or reached the advanced level of foreign countries. Due to the high quality and low price, the competitiveness in the international market is very high. Strong, but there are still a large number of energy-saving lamp manufacturers in the market, regardless of the national laws and regulations, regardless of the interests of consumers, is still mass production of energy-saving lamps not called "energy-saving lamps", because of its low quality and low price Each ex-factory price is only about 4 to 5 yuan. Consumers have limited identification of products. In rural areas and most cities, there is still a large part of the market. Because most of the market in the market is occupied by low-end products, It makes it difficult for good energy-saving lamp products to enter the market, which brings certain difficulties to the promotion of green lighting. However, with the improvement of consumer awareness and the understanding of energy-saving lamp products, the market for good quality energy-saving lamp products is in one day. The expansion, the poor quality of the energy-saving lamp market shrinks day by day, which brings us hope and opportunity. Due to the remarkable effect of energy-saving lamps and rapid improvement in quality, the country has promoted and used it as a key development energy-saving product (green lighting products).

The English name of the energy-saving lamp is usually called ENERGY SAVING LAMP (ESL), or COMPACT FLUORESCENCE LAMP (CFL), or BULB (bulb). The products are mainly made up of energy-saving lamps, PCB boards, plastic casings and lamp holders. The packaging is composed, but the PCB board is invisible and can only be seen when the energy saving lamp is turned on. The main technical terms of electronic energy-saving lamps are: model, working voltage, wattage, lamp head, color temperature, lumens, lamp, light decay, plastic, life, etc. The following one explains.

1. Model:

Everyone in the supermarket can generally see 2u series, 3U series and other energy-saving lamps. What does this mean? Everyone knows that the lamp of the energy-saving lamp is U-shaped, 2 lamps are 2U, and 3 lamps are 3U. There are no major differences between other lamps of different shapes. The main difference is the power. Generally, the larger the wattage, the longer the length, and the thicker the lamp and plastic.

2. Working voltage voltage, the unit is V:

Refers to the voltage required for energy-saving lamps to work. Usually, most countries in our country and Asia are 220v (except Japan and Korea), Europe is 230v, Australia is 240v, North America (USA), Japan (Korea) and most of them. The South American home is 110v, and there is DC 12V, mainly for use on board or on solar energy. In addition to the voltage, the power supply also has a frequency requirement, and the general frequency is 50 Hz or 60 Hz. But the frequency has little to do with energy-saving lamps. Usually, the energy-saving lamps produced by our company can work normally within the range of -20%--+10% of the working voltage, such as 220v, then calculate according to this ratio: 176v-242v voltage working normally, thus avoiding some countries because of voltage A large number of energy-saving lamps caused by instability are broken. One thing to declare is that the more stable the power supply, the longer the service life; the fewer the number of switches, the longer the life.

3. Power Watt, the unit is W:

Power has two concepts of actual power and print power. The printing power is usually seen by everyone, and most customers can accept the concept; but the actual power is invisible and can only be measured by the instrument, in order to prevent Unscrupulous manufacturers falsify and pretend to use high power at low power to save money (usually the lower the power, the cheaper the price). China has issued a national standard for energy-saving lamps, GB/T17263-2002, which stipulates that the actual power should not be lower than 85% of the printing power. However, due to different commodity inspection requirements in different cities in China, the phenomenon of posing high power with low power is still widespread.

4. Base base:

The lamp head refers to the head of the energy saving lamp, usually E27/E26/B22/E14. E27 is needed in most markets. The lamps used in China are basically the same; E26 is the United States and Canada; B22 is the British and British colonial countries, such as: India, Pakistan, Australia, etc.; E14 is a small lamp head. The materials are copper, iron, aluminum, etc. The price is also from high to low. The difference is that the iron lamp head has to be rusted for a long time, and the aluminum lamp head is relatively soft.

5. Color temperature, the unit is K:

It refers to the color of light when the light is on, usually from 2700k to 7000k. The higher the color temperature, the whiter it is, the brighter it looks, the brighter it is, which is not the case. Then there are some professional English about color temperature, warm color refers to 2700k, daylight refers to 6400k, cool daylight refers to 6500k-6700k, and so on. The color temperature has nothing to do with the price of the lamp. But related to production, usually like 2700k, 6400k, 6500k and 6700k, more commonly used, the quantity limit is not very strict, other such as: 4100k color temperature, the lamp supplier has a certain number of requirements.

6. Lumen Lumen, unit LM:

How to prove that the energy-saving lamp is 5 times brighter than the ordinary light bulb? This involves the measurement problem. As we all know, the weight of a person is measured in kilograms. What is the brightness measured? Also, the brightness The unit of measurement is lumens LM, how many lumens per watt, the total lumens determines the light bulb? The national standard for ordinary bulbs is 10lm/w, which means 25w, it has 250lm, (the actual power of the bulb The printing power is basically 100%, because they have no cost difference, 25w and 100w are the same price), the lumens of energy-saving lamps can generally reach 55lm/w, the lamps of individual manufacturers, above 15w, the lumens can reach 60lm/w. This is a leap! Then the 5w lamp, the actual power 5x85% = 4.25w, 55lm / w, equal to the brightness of 233lm, close to 250lm, so that is equivalent to the brightness of 25w bulb. Of course, if you use different materials, the material is less, the lumen is not so high, that is to say it is not so bright, mainly depends on the material of the powder inside the lamp is not the same.

7. Lamp:

The lamp is an important part of the energy-saving lamp, and the quality of the lamp is mainly determined by the powder inside. Currently, there are usually rare earth powder, namely tri-phosphor, 300-400 yuan/kg, phosphor. (several yuan / kg) and mixed powder three types, three base color powder is good or bad, imported, domestically divided, mixed powder is mainly three base color powder and phosphor mixed in a certain proportion, the higher the proportion of three base color powder The better the quality. The cost of a lamp is different. The lumen of a typical phosphor is only about 40 lm/w.

8. Plastic shell:

The outer casing of the energy-saving lamp is usually made of plastic shell. There are many kinds of plastic materials. Usually, high-grade energy-saving lamps use PBT, (high temperature resistance), flame retardant; PC, ABS, etc., ABS is flame retardant and non-flame retardant, the price It is also the most expensive PBT. ABS is the cheapest, and some unscrupulous manufacturers use recycled ABS to minimize costs. Everyone must have heard the XXX place caused by the aging of the lamp head, causing a fire. The main cause of this fire was the use of ABS, which is not flame retardant.

9. Light decay:

The luminous flux is attenuated until a certain time, that is, it is 55lm/w at the beginning, slowly reduced to 50lm / w, 45lm / w, etc. until there is no brightness, good powder, its slower decay, such as: Good tri-color toner, only 10% attenuation in 1000 hours, 2000 hours, to 20%. But the powder, like the phosphor, began to decay in 100 hours. In one month, it was almost half. After 1000 hours, there was no brightness, which means that the life of the energy-saving lamp is over.

10. Lifetime:

The energy-saving lamp is broken or has no brightness, which means the life of the energy-saving lamp is over. The life depends on the quality of the lamp, the quality of the PCB and the combination of them (the peak ratio (CF value). Some lamps are the first tube) Bad or no brightness, some are broken PCB, some are not well matched, broken. Usually good energy-saving lamps, life can reach 8000 hours, that is, 1 year, some only a few hundred hours or less, this allows consumption The illusion that "energy-saving lamps are not cost-effective" has arisen.

Looking at the above statement, now everyone should understand the relationship between the quality of energy-saving lamps and materials. To say something ugly, in China's energy-saving lamp industry, as long as you are willing to pay, you can buy any energy-saving lamps of different grades. The price of one point is different, and the quality of energy-saving lamps of different prices is different.

Although our company's energy-saving lamps are expensive, but because of the high cost of energy-saving lamps, the market price is too expensive, spend more money to use the rest assured, with peace of mind!

The working principle of the electronic energy-saving lamp: using a high-frequency electronic ballast to invert the 50HZ mains to 20-50KHZ high-frequency voltage to ignite the fluorescent lamp. It has the following advantages:

(1) High luminous efficiency

Light efficiency, that is, luminous efficiency, refers to the ratio of the luminous flux emitted by a light source to the electrical power consumed. It can be expressed in lumens per watt or LM/W (luminous flux: refers to the amount of light emitted by the light source per unit time, which is an important indicator of the brightness of the lamp, expressed in LM.) Compact fluorescent lamps are compared with ordinary bulbs. The luminous efficiency is increased by about 5-6 times. For example, the luminous flux of an 11W energy-saving lamp is equivalent to a 60W ordinary incandescent lamp.

(2) long life

The so-called life refers to the cumulative time of a finished lamp from ignition to "burnout" or lamp operation to any requirement below the life performance specified in the standard. Ordinary incandescent bulbs have a rated life of 1000 hours, and compact fluorescent lamps typically have a lifetime of 5,000 hours.

(3) good color rendering

A variety of similar light sources will show different light colors. We use the CRI (COLOR RENDERING INDEX) to determine the range from 0 to 100. The color of the incandescent lamp and the daytime energy index is 100. Displaying the level of the index directly reflects the color rendering of the light. The higher the color rendering index of the light, the more the true color of the object under its illumination is reflected. On the contrary, the color of the object will be distorted. In general, as long as the color rendering index of light is greater than 75, the color of the object can be truly reflected without distortion.

The compact fluorescent lamp uses a rare earth trichromatic phosphor, and its color rendering index is about 80RA, which is significantly improved compared with ordinary fluorescent lamps. If cheap halogen powder is used as the raw material, this effect will not be achieved.

(4) Small size, beautiful appearance and easy to use.

Because the compact fluorescent lamp has a high power load, it is small in size and has a decorative effect. The lamp cap specification of the integrated energy-saving lamp is basically the same as that of the ordinary bulb, so it can be used directly instead of the ordinary bulb. Its market capacity is huge and it is easy to promote and apply. It can be said that the compact fluorescent lamp concentrates on the power saving of the fluorescent lamp, the long life and the incandescent lamp are small in size, the color is good, and the use is simple, and the like is a typical light source of modern indoor lighting, and has become a recommended product of the international green lighting source. There are huge potential markets and development prospects.

How to choose and rationally use compact fluorescent lamps:

(1) Select lamps that meet the characteristics of the light source. For example, a large number of ceiling-embedded lamps should have good light reflectivity, and the heat dissipation and ventilation should be good. The diameter and depth of the reflector surface should match the energy-saving lamps. Generally, the energy-saving lamps are not suitable for adjustment. Light fixtures are not suitable for small-volume enclosed fixtures, nor for places where water is easily sprayed.

(2) The fluctuation range of the power supply voltage should meet the requirements of the voltage fluctuation of the urban power grid in China <+10. The voltage fluctuations in some areas are too large, which will have a great impact on the performance of the energy-saving lamps.

Energy-saving lamps refer to energy-saving lamps developed from rare earth trichromatic phosphors (which are generally driven by electronic rectifiers). At present, the application of rare earth trichromatic phosphors for lamps has entered a new stage of development. The development trend of energy-saving light sources is that the light source geometry is getting smaller and smaller, the light effect is getting higher, and the highest luminous flux is obtained with less electric energy. . A 7-watt tri-color energy-saving lamp is equivalent to a 45-watt incandescent lamp, and has a lifespan eight times that of an ordinary incandescent bulb.

However, in real life, many people's impressions of energy-saving lamps are getting worse and worse, that is, people usually say that "power saving does not save money." Some so-called energy-saving lamps, when the beginning of use, the brightness is ok, and soon it will slowly darken, and the life is short, so it is better to use the energy-saving lamps to calculate the cost. The reason is that these people may have used fake and shoddy energy-saving lamps. Because, there are indeed some manufacturers under the banner of energy-saving lamps, using halogen powder instead of rare earth trichromatic phosphors to produce "halogen powder lamps" (note: the price of tribasic toner is 30 times that of halogen powder), to cater to it Low grade, low price market. It is estimated that the halogen powder lamps that enter the market every year account for about 70% of the total market sales. This not only damages the interests of consumers, but also dampens the enthusiasm of responsible producers, and also has a negative impact on the promotion of "green lighting", making it difficult for consumers to distinguish what is truly energy-saving fluorescent lamps.

Test data shows that halogen powder lamps simply cannot enter the market as commodities. A 9-watt halogen powder lamp has been tested to have a luminous flux of only 323 lumens at zero hour and a color rendering index of only 65. The 100-hour light decay is as high as 23%, that is, the initial luminous flux is 248 lumens, and the effective life is determined according to national standards. zero. According to national standards, the 2000-hour lumen maintenance rate of compact energy-saving fluorescent lamps cannot be lower than 78%. And a high-quality energy-saving lamp, the initial luminous flux of 560 lumens, to 10,000 hours, still maintain a luminous flux of 431 lumens.

Due to the lack of professional knowledge in this area, the principle of "light decay" is often not understood, and it is mistaken that "the light that will be bright is still good." In fact, a 9-watt energy-saving lamp, after one or two hundred hours of ignition, its power consumption is still 9 watts, but the brightness can only be equivalent to 3 watts. Only because it is slowly darkening, people's naked eyes are hard to detect.

How to distinguish three primary color lights and halogen powder lights? Generally pay attention to the following points when purchasing:

1. Three-primary energy-saving lamps, the appearance is more refined, plastic parts are usually made of high-temperature resistant flame retardant materials; and halogen powder lamps are fake and inferior products, the appearance is rough, the circuit is simple, the components are inferior, and even more plastic parts are not Flame retardant, dangerous when used.

2. Three-primary energy-saving lamps, after lighting for a few minutes, reach normal brightness, bright and soft; while halogen powder lamps, once energized, the brightness basically reaches the peak, the brightness is low, the light color is blue, and it looks pale and weak.

3. A simple identification method, the lighted three primary lights on the palm of your hand, the palms appear ruddy and bloody; the same halogen powder on the palm, it looks blue, no blood. When two lit lights are put together, the difference is obvious.

In addition, when purchasing energy-saving lamps, we must also consider the technical parameters of the electronic ballast, such as harmonic content, power factor, whether or not there are indicators such as filter components. Especially in some large-area, high-volume use of energy-saving lamps, we must use low-harmonic, high-power factor, energy-saving lamps with filter components, and install as many power switches as possible to avoid simultaneous switching of large number of energy-saving lamps. The high voltage pulse of the power grid impacts and causes damage.

Another thing worth noting is that people always like to use energy-saving lamps in the downlights. Due to poor heat dissipation conditions, the high temperature performance of energy-saving lamps and electronic components is very high (we have tested it, the temperature inside the plastic parts can be as high as 90-105 ° C). Therefore, it is best to use a larger size when selecting the downlight, do not block the cooling holes of the energy-saving lamp, so that there is enough space for heat dissipation.

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